DOWNLOAD Panasonic KX-TDA620BX (serv.man8) Service Manual ↓ Size: 5.85 MB | Pages: 67 in PDF or view online for FREE

Model
KX-TDA620BX (serv.man8)
Pages
67
Size
5.85 MB
Type
PDF
Document
Service Manual / Supplement
Brand
Device
PBX / HYBRID IP-PBX
File
kx-tda620bx-sm8.pdf
Date
PREV: Panasonic KX-TDA6178X / KX-TDA6178XJ (serv.man8) Service Manual / Supplement

Panasonic KX-TDA620BX (serv.man8) Service Manual / Supplement ▷ View online

41
KX-TDA620 Series
12.2. BUS-S Board No.1
2
KX-TDA620 Series BUS-S BOARD SCHEMATIC DIAGRAM No.1
3.3V
0V
8.192MHz
Normal
3.3V
Normal
3.3V
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
Normal
3.3V
Normal
3.3V
3.3V
0V
Normal
3.3V
3.3V
0V
20 or 25 Hz
3.3V
0V
8kHz
Normal
3.3V
Normal
0V
3.3V
0V
8.192MHz
D
F
E
C
B
A
H
G
4
7
6
5
3
2
8
11
10
9
LD[8]
LA[9]
CT_D[1]
EC_AD[10]
CT_D[4]
EC_nFRAME
EC_PAR
LD[7]
LA[8]
EC_nSTOP
EC_nSTOP
EC_nFRAME
LD[6]
EC_AD[14]
LA[7]
EC_nPERR
LD[5]
LHW_CLK[1]
CT_D[7]
EC_nFRAME
LA[6]
EC_nTRDY
EC_AD[12]
LD[4]
LHW_nFH
CT_D[6]
LA[4]
CT_D[7]
LD[3]
EC_AD[8]
LA[3]
CT_D[6]
LD[2]
EC_AD[6]
LA[2]
EC_AD[10]
CT_FRAME
CT_D[5]
LD[1]
LUHW[1]
EC_AD[3]
LD[0-15]
LA[1]
EC_AD[8]
EC_AD[1]
CT_D[4]
nRD/nCAS
LD[0]
LDHW[1]
EC_nPERR
EC_AD[3]
EC_AD[0]
EC_AD[1]
CT_D[2]
CT_D[2]
EC_AD[0]
LUHW[1]
CT_D[1]
EC_AD[5]
CT_D[0]
EC_AD[0]
EC_AD[13]
LDHW[1]
CT_D[0]
EC_AD[15]
EC_AD[14]
EC_AD[4]
EC_AD[13]
EC_PAR
EC_AD[9]
CT_C8
CT_D[5]
CT_D[3]
EC_AD[11]
EC_AD[10]
CT_NETREF
EC_nCBE[1]
EC_AD[9]
EC_AD[8]
EC_AD[7]
EC_nCBE[1]
EC_nINT
LD[15]
EC_nINT
EC_AD[7]
EC_AD[11]
EC_AD[6]
EC_nCBE[0]
LA[15]
EC_AD[9]
LD[14]
EC_AD[5]
EC_PAR
A[0]
LA[14]
LD[13]
EC_AD[4]
EC_AD[11]
LA[13]
CT_NETREF
LD[12]
EC_AD[1]
EC_AD[2]
EC_AD[3]
EC_nCDET
LA[12]
LD[11]
EC_AD[15]
EC_AD[2]
EC_nPERR
EC_nINT
LD[10]
LA[11]
EC_AD[2]
EC_AD[14]
EC_nTRDY
EC_nCBE[1]
EC_AD[13]
LD[9]
LA[10]
EC_AD[15]
EC_AD[12]
EC_nSTOP
EC_nCBE[0]
LA[5]
nBS
nCS5
HALT
HALT
CKIO_NEXUS
LUHW[0]
CT_D[3]
EC_AD[4]
EC_AD[6]
EC_AD[5]
EC_AD[7]
EC_nCBE[0]
EC_nTRDY
EC_AD[12]
CT_FRAME
LHW_nFH
nCS_SRAM
L_nWE1R
L_nWE0R
SHW_CLK
SHW_nFH
A[0-20]
A[17]
A[18]
A[19]
A[20]
LA[16]
LHW_CLK[1]
CT_C8
EC_nCDET
CT_D[7]
CT_D[6]
CT_D[5]
CT_D[4]
CT_D[3]
CT_D[2]
CT_D[1]
CT_D[0]
CT_C8
CT_FRAME
CT_NETREF
EC_nCDET
LDHW[0]
DG
R171
100
DG
R134
68
+3.3V
DG
R146
1K
R139
10K
DG
3.3V_BB
7:8D
DG
+3.3V
+15VIN
7:1E
L131
RINGER
9G
R150
1.0K
R136
100
DG
R130
22
R167
22
+3.3V
DG
R131
22
DG
R147
1K
+3.3V
DG
IC111
14
7
DG
R132
22
+3.3V
IC112
12
DG
R145
1K
DG
IC112
3
4
R144
10K
DG
DG
R154
2.2K
IC112
5
6
+3.3V
DG
+3.3V
DG
R148
680
DG
J102
0
DG
R159
1.0K
DG
R149
680
+3.3V
+3.3V
R170
1.0K
R160
22K
R135
100
3:11A;4:1E;5:1A
DG
R129
10K
+3.3V
R143
10K
R155
10K
J104
0
+3.3V
DG
+3.3V
+3.3V
R124
10K
C149
1000P
FG1
R163
2.2K
DG
+3.3V
R168
100
L130
R140
1K
R152
68
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
DG
R169
100
DG
IC112
14
7
R151
47
C150
1000P
RINGER
8C
R133
47
nLEDRUN
5G
nLEDALM
5G
nCS5
2:5E;3:1D;4:9D;7:12D
nBS
2:5E
nWAIT_NEXUS
4:9D
nIRQ_ASIC
2:11D
CKIO_NEXUS
2:3F;4:11D
+3.3V
nDC_ALM
2:11D;2:4C
nAC_ALM
2:4C
POWTYPE[0]
4H
POWTYPE[1]
4H
nFAN_ALM
2:4C
nLOS_BB
2:4C
nBATT
2:4C
nRESOUT
2:5C
nPWRST
2:7H;3:7G;4:11D
RING_SYNC
4:11D
nBREQ
2:7G
nRD/nCAS
2:5E;3:1F;3:6C;7:12G
L_nWE1
3:7H;3:8D
L_nWE0
3:7H;3:8D
LA[1-16]
3:11A;4:1C;5:1B
R106
0
nBREQin
7:10G
POWTYPE[0]
10H
POWTYPE[1]
10H
M/nS
4H
MASTER/nS
4H
TP1113
TP1091
TP1100
TP1093
TP1111
TP1121
TP1110
TP1106
TP1109
TP1092
TP1102
TP1090
TP1026
TP1114
TP1095
TP1104
TP1105
TP1021
TP1117
TP1073
TP1070
TP1108
TP1118
TP1098
TP1094
TP1112
TP1071
TP1096
TP1101
TP1072
TP1120
TP1107
TP1074
TP1069
TP1103
TP1116
TP1119
TP1027
TP1099
TP1115
TP1097
C144
NC
C145
1000p
FIL102
1
2
3
CN103
A1
+15VPTA1
B1
+15VPTB1
A2
+40V
B2
+15V
A3
POWER_GNDA3
B3
POWER_GNDB3
A4
EC_CLK
B4
EC_nSTOP
A5
GNDA5
B5
GNDB5
A6
EC_nTRDY
B6
EC_nPERR
A7
EC_nFRAM
B7
EC_PAR
A8
EC_nCBE[0]
B8
EC_nCBE[1]
A9
EC_IDSEL
B9
EC_nRST
A10
GNDA10
B10
GNDB10
A11
EC_AD[0]
B11
EC_AD[1]
A12
EC_AD[2]
B12
EC_AD[3]
A13
EC_AD[4]
B13
EC_AD[5]
A14
GNDA14
B14
GNDB14
A15
EC_AD[6]
B15
EC_AD[7]
A16
EC_AD[8]
B16
EC_AD[9]
A17
EC_AD[10]
B17
EC_AD[11]
A18
GNDA18
B18
ReservedB18
A19
EC_AD[12]
EC_AD[13]
B19
A20
EC_AD[14]
B20
EC_AD[15]
A21
EC_nINT
B21
EC_nCDET
A22
GNDA22
B22
ReservedB22
A23
CT_D[0]
B23
CT_D[1]
A24
CT_D[2]
B24
CT_D[3]
A25
CT_D[4]
B25
CT_D[5]
A26
CT_D[6]
B26
CT_D[7]
A27
GNDA27
B27
ReservedB27
A28
CT_NETRE
B28
CT_C8
A29
CT_FRAME
B29
nLOS
A30
GNDA30
B30
GNDB30
A31
ReservedA31
B31
ReservedB31
A32
ReservedA32
B32
ReservedB32
A33
ReservedA33
B33
ReservedB33
A34
TXD2
B34
RXD2
A35
ReservedA35
B35
ReservedB35
A36
ReservedA36
B36
ReservedB36
A37
ReservedA37
B37
ReservedB37
A38
+30VA38
B38
+30VB38
A39
RINGER
B39
RING_SYNC
A40
nHALT
B40
RING_SIN
A41
GNDA41
B41
(+3.3V)
A42
(DC_ALM)
B42
(AC_ALM)
A43
(nEXTPOW[0])
B43
(nEXTPOW[1])
A44
DIAG_R
B44
DIAG_T
A45
GNDA45
B45
RINGER_AC
R122
10K
FIL104
1
2
3
R137
33
IC111
98
IC111
56
IC111
12
IC111
3
4
QA101
1
2
3
4
5
Q101
E
C
B
DG
DG
M/nS
9G
MASTER/nS
11E
+3.3V
CLK_16M
2:5G;4:11D
+3.3V
R117
10K
+3.3V
+3.3V
+3.3V
+3.3V
TP1075
R128
10K
R120
10K
RA
12
8
10
K
1
2
3
4
5
6
7
8
RA
12
4
10
K
1
2
3
4
5
6
7
8
RA
12
5
10
K
1
2
3
4
5
6
7
8
RA
12
6
10
K
1
2
3
4
5
6
7
8
RA
12
7
10
K
1
2
3
4
5
6
7
8
IC101
1
GND1
2
P3[7]/TXB[7]
3
P3[6]/TXB[6]
4
P3[5]/TXB[5]
5
P3[4]/TXB[4]
6
P3[3]/TXB[3]
7
P3[2]/TXB[2]
8
P3[1]/TXB[1]
9
P3[0]/TXB[0]
10
GND10
11
VDD11
12
P4[7]
13
P4[6]
14
P4[5]
15
P4[4]
16
P4[3]
17
P4[2]
18
P4[1]
19
P4[0]
20
GND20
21
P5[7]
22
P5[6]
23
P5[5]
24
P5[4]
25
P5[3]
26
P5[2]
27
P5[1]
P5[0]
29
GND29
30
VDD30
31
AVDD
32
RX[7]
33
RX[6]
34
RX[5]
35
RX[4]
36
RX[3]
37
RX[2]
38
RX[1]
39
RX[0]
40
VREF_PLUS
41
VREF_MINUS
42
VDD42
43
PLLGND
44
PLLVDD
45
PLLCLK
46
PLLATI
47
NC47
48
GND48
49
VDD49
50
RINGER
51
CT_FRAME
52
CT_CB
53
CT_NETREF
54
GND54
55
CT_D[7]
56
CT_D[6]
57
CT_D[5]
58
CT_D[4]
59
GND59
60
VDD60
61
GND61
62
CT_D[3]
63
CT_D[2]
64
CT_D[1]
65
CT_D[0]
66
GND66
67
VDD67
68
TCK
69
TDI
70
TDO
71
TMS
72
TRST
73
TESTMODE0
74
TESTMODE1
75
EC_CDET
76
EC_INT
77
GND77
78
EC_AD[15]
79
EC_AD[14]
80
EC_AD[13]
81
EC_AD[12]
82
GND82
83
VDD83
84
EC_AD[11]
85
EC_AD[10]
86
EC_AD[9]
87
EC_AD[8]
88
GND88
89
EC_AD[7]
90
EC_AD[6]
91
EC_AD[5]
92
EC_AD[4]
93
GND93
94
VDD94
95
EC_AD[3]
96
EC_AD[2]
97
EC_AD[1]
98
EC_AD[0]
99
GND99
100
EC_nRST
101
EC_BE[1]
102
EC_BE[0]
103
EC_PAR
104
GND104
105
VDD105
106
EC_FRAME
107
EC_PERR
108
EC_TRDY
109
EC_STOP
110
GND110
111
EC_CLK
112
NC112
113
GND113
114
VDD114
115
SDI
116
SDO
117
RTS
118
CTS
119
ADD[20]
120
ADD[19]
121
ADD[18]
122
ADD[17]
123
ADD[16]
124
GND124
125
ADD[15]
126
ADD[14]
127
ADD[13]
128
ADD[12]
129
ADD[11]
130
ADD[10]
131
ADD[9]
132
ADD[8]
133
GND133
134
VDD134
135
ADD[7]
136
ADD[6]
137
ADD[5]
138
ADD[4]
139
ADD[3]
140
ADD[2]
141
ADD[1]
142
ADD[0]
143
GND143
144
DATA[15]
145
DATA[14]
146
DATA[13]
147
DATA[12]
148
DATA[11]
149
DATA[10]
150
DATA[9]
151
DATA[8]
152
GND152
153
VDD153
154
DATA[7]
155
DATA[6]
156
DATA[5]
157
DATA[4]
158
DATA[3]
159
DATA[2]
160
DATA[1]
161
DATA[0]
162
GND162
163
nEXTINT[2]
164
nEXTINT[1]
165
nEXTINT[0]
166
nIRQ
167
nBREQ
168
nBACK
169
nCS_SRAM
170
nCS_MES
171
GND171
172
VDD172
173
nRD
174
nWR[1]
175
nWR[0]
176
nBUSY
177
nRESET
178
nBS
179
CLKIO
180
GND180
181
GND181
182
HW_CLK[0]
183
HW_CLK[1]
184
HW_FH
185
LUHW[0]
186
LDHW[0]
187
LUHW[1]
188
LDHW[1]
189
L_NETREF
190
GND190
191
VDD191
192
SHW_CLK
193
SHW_FH
194
PID[7]/CHP[7]
195
PID[6]/CHP[6]
196
PID[5]/CHP[5]
197
PID[4]/CHP[4]
198
PID[3]/CHP[3]
199
PID[2]/CHP[2]
200
PID[1]/CHP[1]
201
PID[0]/CHP[0]
202
GND202
203
C_CS[3]
204
C_CS[2]
205
C_CS[1]
206
C_CS[0]
207
DCLK
208
DOUT
209
DIN
210
CP[0]
211
GND211
212
VDD212
213
P0[7]
214
P0[6]
215
P0[5]
216
P0[4]
217
P0[3]
218
P0[2]
219
P0[1]
220
P0[0]
221
GND221
222
P1[7]/TXA[7]
223
P1[6]/TXA[6]
224
P1[5]/TXA[5]
225
P1[4]/TXA[4]
226
P1[3]/TXA[3]
227
P1[2]/TXA[2]
228
P1[1]/TXA[1]
229
P1[0]/TXA[0]
230
GND230
231
VDD231
232
P2[]232
233
P2[]233
234
P2[]234
235
P2[]235
236
P2[]236
237
P2[]237
238
P2[]238
239
P2[]239
240
GND240
C107
0.01u
C123
0.01u
C146
0.01u
FIL101
1
2
3
DG
+3.3V
RA107
10K
4
3
2
1
8
7
6
5
RA106
10K
4
3
2
1
8
7
6
5
IC110
3
5
IC110
1
7
IC110
6
2
IC110
8
4
R165
100
+3.3V
R119
10K
R164
100
C148
220P
FIL103
1
2
3
DG
R166
47
+3.3V
R161
10K
R138
0
NC
R158
2.2K
TP1025
TP1024
TP1023
+3.3V
RA108
10K
4 
3 
2 
1
8
7
6
5
RA103
10K
4
3
2
1
8
7
6
5
RA104
10K
4
3
2
1
8
7
6
5
RA105
10K
4 
3 
2 
1
8
7
6
5
+3.3V
J105
NC
J106
NC
J107
NC
J108
NC
J109
NC
J110
NC
J111
NC
J112
NC
DG
nCMIBYP
4:1B
nDIAG_CLINK
4:1H
nLEDRUN
9F
nLEDALM
9F
+3.3V
FAIL_A
5:2H
R107
10K
R108
10K
RA109
10K
1 
2 
3 
4
5
6
7
8
RA111
10K
1 
2 
3 
4
5
6
7
8
+3.3V
RA120
10K
1 
2 
3 
4
5
6
7
8
+3.3V
RA119
10K
1 
2 
3 
4
5
6
7
8
J113
NC
J114
NC
J115
NC
J116
NC
J117
NC
J118
NC
J119
NC
J120
NC
R125
10K
+3.3V
R126
10K
R121
33
R162
10K
+3.3V
+3.3V
R157
10K
+3.3V
R156
10K
+3.3V
R114
10K
+3.3V
R116
10K
R115
33
nCS4
2:5E;3:1D;3:7G;7:10D
+3.3V
R112
10K
R113
33
R111
33
SHW_CLK
6:11D
SHW_nFH
6:11D
DG
A[0-20]
2:1A;7:8C;3:1A
RA110
10K
4
3
2
1
8
7
6
5
nHUBON
4:1B
+3.3V
IC112
11
10
IC112
13
12
IC111
11
10
IC111
13
12
TP1007
TP1003
TP1006
+3.3V
QA102
1
2
3
4
5
R102
150
+3.3V
Q102
TP1002
DG
R103
150
LED101
 
1
2
3
4
CPU_nRESET
2B;2:5D;2:7H;3:7G
TP1081
TP1178
TP1179
TP1180
TP1181
TP1182
TP1183
TP1184
TP1185
TP1186
TP1187
TP1188
TP1189
TP1190
TP1191
TP1192
TP1193
TP1177
TP1176
TP1175
TP1174
TP1173
TP1172
TP1171
TP1170
TP1194
TP1195
TP1196
TP1197
TP1198
TP1199
TP1200
TP1201
TP1202
TP1203
TP1204
TP1205
TP1011
TP1057
TP1058
TP1059
TP1061
TP1062
TP1060
TP1063
TP1016
TP1015
TP1014
+3.3V
TP1065
TP1067
R123
33
TP1019
TP1017
TP1022
CTSW_EN
5:2H
TP1076
TP1077
TP1078
nBACK
2:7G
IC112
9
8
IC210
13
12
R101
33
R105
33
R104
33
TP1009
TP1004
TP1005
TP1001
CPU_nRESET
3F;2:5D;2:7H;3:7G
TP1008
TP1068
TP1028
TP1029
TP1030
TP1031
TP1032
TP1033
TP1034
TP1035
TP1036
TP1037
DG
TP1038
TP1039
TP1040
TP1041
TP1042
TP1043
TP1044
RA102
10K
4 
3 
2 
1
8
7
6
5
TP1045
TP1046
TP1047
TP1048
TP1049
TP1050
TP1051
TP1052
TP1053
TP1054
TP1055
TP1056
TP1082
TP1083
TP1084
TP1085
TP1086
TP1080
TP1079
TP1140
TP1139
TP1020
TP1018
X102
16.384MHz
1
NC
2
GND
3
OUT
4
VCC
TP1282
TP1283
TP1284
TP1263
TP1242
TP1285
TP1264
TP1248
TP1236
TP1239
TP1286
TP1249
TP1240
TP1250
TP1251
TP1252
TP1253
TP1254
TP1255
TP1256
TP1257
TP1258
TP1243
TP1244
TP1259
TP1260
TP1230
TP1265
TP1266
TP1267
TP1268
TP1269
TP1270
TP1287
TP1245
TP1246
TP1288
TP1261
TP1262
TP1232
TP1238
TP1233
TP1289
TP1271
TP1290
TP1291
TP1279
TP1280
TP1241
TP1272
TP1273
TP1274
TP1275
TP1276
TP1277
TP1278
TP1234
TP1231
TP1227
TP1226
TP1229
TP1228
TP1223
TP1218
TP1216
TP1217
TP1225
TP1224
TP1219
TP1222
TP1215
TP1213
TP1212
TP1210
TP1208
TP1207
TP1137
TP1136
TP1135
TP1134
TP1133
TP1132
TP1131
TP1130
TP1129
TP1128
TP1127
TP1126
TP1125
TP1124
TP1123
TP1122
TP1138
TP1169
CT_C8
7A;5:2H
nBACK_NEXUS
3:1D
TP1281
R153
1.0K
+3.3V
TP1237
IC113
74LVC74
3
CLK
2
D
5
Q
4
SET
1
RESET
6
Q
+3.3V
DG
R141
47
R142
10K
NC
TP1221
Q103
E
C
B
nSLFFAN_ALM
2:4C
TP1214
+3.3V
D1H81034A024
RA123
10K
RE1
1
2
3
4
5
6
7
8
D1H81034A024
RA122
10K
RE1
1
2
3
4
5
6
7
8
+3.3V
TP1211
D1H81034A024
RA121
10K
RE1
1
2
3
4
5
6
7
8
+3.3V
TP1209
CT_D[0-7],CT_C8,CT_NETREF,CT_FRAME
5:11A;12E;5:2H;6:11F
TP1064
R109
33
R110
33
TP1066
TP1012
TP1013
P.G
P.G
C112
1.0u
C147
1.0u
C134
1.0u
RA101
10K
4 
3 
2 
1
8
7
6
5
C773
C776
NC
DG
TP1010
RA112
68
1
2
3
4
5
6
7
8
RA113
68
1
2
3
4
5
6
7
8
RA114
68
1
2
3
4
5
6
7
8
RA115
68
1
2
3
4
5
6
7
8
RA116
68
1
2
3
4
5
6
7
8
RA117
47
1
2
3
4
5
6
7
8
RA118
47
1
2
3
4
5
6
7
8
RA130
10K
4 
3 
1 
2
7
8
6
5
RA
12
9
2.
2K
1
2
4
36
5
7
8
LA
10
2
22
0
1
2
3
4
5
6
7
8
LA
10
3
22
0
1
2
3
4
5
6
7
8
LA
10
4
22
0
1
2
3
4
5
6
7
8
LA
10
5
22
0
1
2
3
4
5
6
7
8
LA
10
6
22
0
1
2
3
4
5
6
7
8
LA
10
7
22
0
1
2
3
4
5
6
7
8
LA
10
1
22
0
1
2
3
4
5
6
7
8
nBSRSTOUT
2:5D;4:1G;4:8E;5:1D
TP1235
TP1247
CN103_RING_SYNC
2:4C
TP1292
TP1293
+3.3V
R118
680
L132
L133
L134
L135
L136
L137
L138
L101
R127
0
TP1087
TP1088
TP1089
CLK_16M
FG2
C117
180p
C102
180p
C104
180p
C108
180p
C113
180p
C130
180p
C116
180p
C119
180p
C124
180p
C127
180p
C120
180p
C128
180p
C125
180p
C137
180p
C135
180p
C105
180p
C131
180p
C109
180p
C114
180p
GREEN
RED
used as nTDA600
This signal is used as nTDA600
42
KX-TDA620 Series
12.3. BUS-S Board No.2
3
KX-TDA620 Series BUS-S BOARD SCHEMATIC DIAGRAM No.2
65.536MHz
3.3V
0V
3.3V
0V
D
F
E
C
B
A
H
G
4
7
6
5
3
2
8
11
10
9
D[12]
D[25]
A[8]
D[27]
A[15]
A[3]
D[3]
D[24]
D[29]
A[9]
A[20]
A[2]
D[2]
D[23]
A[10]
A[1]
A[19]
D[1]
D[22]
A[0]
A[18]
D[11]
D[0]
A[21]
nIRQ_ASIC
D[10]
D[28]
A[24]
D[9]
D[26]
D[8]
A[23]
A[13]
D[21]
D[0-31]
D[7]
A[22]
A[12]
D[20]
D[20]
D[6]
A[25]
A[11]
D[17]
D[19]
D[5]
A[6]
A[14]
A[0-25]
D[30]
D[18]
D[4]
A[5]
A[17]
D[13]
D[16]
D[14]
A[7]
D[15]
A[16]
A[4]
D[31]
nDC_ALM
nRDY
TXD2
nCTS2
nRTS2
nSLF_PRS
nLOS
ESLFID[1]
CPU_RXD2
D[31]
A[12]
A[1]
A[13]
A[18]
A[15]
A[11]
A[6]
A[2]
A[4]
A[7]
A[14]
A[5]
A[10]
A[16]
A[8]
A[20]
A[3]
A[0]
A[17]
A[19]
A[9]
D[0-31]
RXD2
DG
A[21]
A[22]
A[23]
D[16]
D[30]
D[17]
D[25]
D[24]
D[23]
D[22]
D[5]
D[10]
D[4]
D[11]
D[1]
D[14]
D[15]
D[0]
D[3]
D[12]
D[2]
D[13]
D[7]
D[8]
D[9]
D[6]
D[18]
D[29]
D[21]
D[26]
D[20]
D[27]
D[19]
D[28]
nIRQ_CCLINK
R265
10k
J214
0
R241
10k
+3.3V
RA227
68
1
2
3
4
5
6
7
8
RD/nWR
3:1F;3:6D;7:10G
R235
68
R267
4.7k
+3.3V
C264
0.01u
C257
1u
R226
68
nRD/nCAS
1:4C;3:1F;3:6C;7:12G
R259
0
C201
1u
RA225
68
1
2
3
4
5
6
7
8
J215
NC
R274
22
RA230
68
1
2
3
4
5
6
7
8
R205
68
nRAS
3:1F;7:12H
R266
NC
R247
0
R227
68
R254
NC
R218
68
+3.3V
RA236
68
1
2
3
4
5
6
7
8
nWE0/DQM0
3:1G;3:6D;7:10G
RA231
68
1
2
3
4
5
6
7
8
+3.3V
R222
68
R251
10k
R261
68
R252
22
R258
0
R275
22
nWE1/DQM1
3:1F;3:6D;7:12G
+3.3V
DG
R237
68
R230
68
R217
68
R256
1k
DG
RA214
10k
1
2
3
4
5 
6 
7 
8
FIL202
1
2
3
RA233
68
1
2
3
4
5
6
7
8
nWE2/DQM2
3:3G;3:6D;7:10G
CKIO_SDRAM2
3:3G
RA228
68
1
2
3
4
5
6
7
8
C263
0.01u
R257
10k
+3.3V
R260
68
+3.3V
+3.3V
nWE3/DQM3
3:3F;3:6D;7:12G
R273
0
R201
10
R250
22
R264
10k
RA234
68
1
2
3
4
5
6
7
8
DG
R202
68
+3.3V
R245
10k
R238
68
J210
NC
nCS_CCLINK
3:1C;4:11E;4:1B;7:12D
R240
68
R215
68
DG
C222
0.01u
A[0-25]
1:3A;7:8C;3:1A
R223
68
C266
22p
+3.3V
R244
0
RA226
68
1
2
3
4
5
6
7
8
CKE
3:1G
IC202
1
Xin
2
GND
3
S1
4
S0
5
SSCLK
6
FASEL
7
VDD
8
XOUT
+3.3V
R253
1k
R229
68
R239
68
CN201
NC
11
22
33
44
55
66
77
88
99
10
10
11
11
12
12
13
13
14
14
+3.3V
+3.3V
J216
0
RA213
10k
1 
2 
3 
4
5
6
7
8
nIRQ_ASIC
1:4C
R228
10k
IC200
197
TMS
198
TCK
3
nCS0
199
TDI
4
nCS1
5
nCS4
6
nCS5
7
nCS6
8
nBS
59
nWE4/nCAS4/DQM4
58
nWE5/nCAS5/DQM5
34
D0
36
D1
42
D3
49
D9
37
D13
38
D2
46
D4
48
D5
50
D6
54
D7
53
D8
47
D10
33
D15
45
D11
41
D12
35
D14
61
nWE0/nCAS0/DQM0
60
nWE1/nCAS1/DQM1
95
RD/nWR
77
CKIO
55
CKE
82
A4
80
A6
94
nRD/nCASS/nFRAME
93
nRAS
67
A14
90
nCS2
89
nCS3
186
A0
189
A1
84
A2
83
A3
63
A16
81
A5
76
A7
75
A8
74
A9
73
A10
72
A11
71
A12
68
A13
150
MD1/TXD2
64
A15
62
A17
96
nWE2/nCAS2/DQM2/nICIORD
97
nWE3/nCAS3/DQM3/nICIOWR
123
D16
121
D17
119
D18
115
D19
104
D22
111
D20
109
D21
102
D23
103
D24
108
D25
110
D26
112
D27
116
D28
120
D29
122
D30
124
D31
98
nWE6/nCAS6/DQM6
171
A18
172
A19
173
A20
174
A21
175
A22
176
A23
149
MD0/SCK
167
MD7/TXD
179
A24
180
A25
101
nWE7/nCAS7/DQM7/nREG
166
MD8/nRTS2
152
nIRL0
153
nIRL1
154
nIRL2
155
nIRL3
2
nRESET
1
nRDY
157
XTAL2
158
EXTAL2
165
TCLK
161
CA
200
nTRST
168
SCK2/nMRESET
156
NMI
51
nBACK/nBSREQ
52
nBREQ/nBSACK
192
MD6/nIOIS16
151
MD2/RXD2
181
MD3/nCE2A
182
MD4/nCE2B
183
MD5/nRAS2
184
DACK0
185
DACK1
86
DRAK0
85
DRAK1
190
STATUS0
191
STATUS1
106
nDREQ0
107
nDREQ1
193
nASEBRK/BRKACK
194
TDO
207
XTAL
208
EXTAL
105
RXD
164
nCTS2
RA224
68
1
2
3
4
5
6
7
8
R249
10k
nBS
1:4D
RA223
10k
1
2
3
4
5 
6 
7 
8
DG
R221
10k
R224
68
DG
RA229
68
1
2
3
4
5
6
7
8
nCS0
3:1D;3:7F;7:10D
R272
22
DG
nIRQ_CCLINK
4:1H
R255
NC
DG
J213
NC
J211
NC
nCS4
1:4C;3:1D;3:7G;7:10D
R216
68
DG
R236
68
R263
NC
RA235
68
1
2
3
4
5
6
7
8
nCS3
7:12D
DG
R262
68
+3.3V
R248
0
+3.3V
RA232
68
1
2
3
4
5
6
7
8
R213
NC
R225
68
DG
R242
10k
nCS5
1:4C;3:1D;4:9D;7:12D
+3.3V
R219
10k
R243
22
D[0-31]
3:1A;7:8A
nCS_CTSW
3:1D;4:11E;5:1B;7:10D
nDC_ALM
1:10H;4C
L230
L229
L224
nRESOUT
1:10B
nBATT
1:9G
nBAT_ALM
7:8G
nAC_ALM
1:10H
nDC_ALM
1:10H;11D
CKIO_NEXUS
1:4D;4:11D
R206
68
nFAN_ALM
1:9G
R208
470
+3.3V
SW201
NC
DG
D201
nBREQ
1:2C
nBACK
1:2C
+3.3V
DG
R204
10
nCS2
3:1F
J217
NC
nBACK_T
7:12G
J220
J219
NC
nBREQout
7:12G
nCS2in
7:10D
R207
10k
+3.3V
R203
68
TP2161
TP2255
TP2270
TP2123
TP2223
TP2171
TP2225
TP2276
TP2207
TP2186
TP2134
TP2083
TP2082
TP2017
TP2080
TP2160
TP2120
TP2256
TP2084
TP2136
TP2158
TP2197
TP2253
TP2278
TP2179
TP2183
TP2011
TP2274
TP2184
TP2130
TP2127
TP2117
TP2174
TP2095
TP2018
TP2185
TP2144
TP2025
TP2246
TP2109
TP2201
TP2254
TP2216
TP2202
TP2008
TP2168
TP2037
TP2046
TP2007
TP2287
TP2295
TP2226
TP2094
TP2039
TP2289
TP2139
TP2002
TP2124
TP2021
TP2146
TP2269
TP2212
TP2099
TP2145
TP2282
TP2221
TP2019
TP2128
TP2009
TP2257
TP2163
TP2151
TP2016
TP2029
TP2190
TP2003
TP2010
TP2087
TP2118
TP2048
TP2271
TP2286
TP
20
56
TP2091
TP2206
TP2067
TP2180
TP2108
TP2273
TP2181
TP2097
TP2294
TP2277
TP2066
TP2199
TP2012
TP2119
TP2219
TP2264
TP2034
TP2284
TP2222
TP2290
TP2106
TP2005
TP2166
TP2092
TP2214
TP2280
TP2154
TP2211
TP2172
TP2142
TP2129
TP2267
TP2194
TP2272
TP2283
TP2069
TP2133
TP2054
TP2187
TP2205
TP2076
TP2049
TP2281
TP2140
TP2030
TP2268
TP2075
TP2096
TP2170
TP2132
TP2285
TP2126
TP2175
TP2137
TP2113
TP2089
TP2217
TP2090
TP2114
TP2111
TP2107
TP2196
TP2100
TP2204
TP2203
TP2138
TP2182
TP2165
TP2143
TP2006
TP2220
TP2200
TP2147
TP2297
TP2266
TP2028
TP2208
TP2291
TP2088
TP2070
TP2085
TP2026
TP2262
TP2159
TP2189
TP2279
TP2121
TP2210
TP2169
TP2086
TP2122
TP2141
TP2004
TP2198
TP2195
TP2036
TP2027
TP2213
TP2296
TP2125
TP2014
TP2071
TP2162
TP2073
TP2112
TP2152
TP2188
TP2116
TP2157
TP2101
TP2263
TP2265
TP2098
TP2135
TP2072
TP2022
TP2001
TP2093
TP2153
TP2224
TP2068
TP2192
TP2191
TP2164
TP2148
TP2167
TP2079
TP2173
TP2077
TP2215
TP2275
TP2293
TP2078
TP2074
TP2218
TP2193
TP2288
TP2110
TP2131
TP2178
TP2081
TP2020
TP2115
CN202
NC
11
22
33
44
55
66
77
5
6
2
C
p
2
2
8
6
2
R
3
3
9
6
2
R
3
3
0
7
2
R
3
3
1
7
2
R
3
3
3
0
2
C
I
1
M/R
2
SUB
3
GND
4
Vout
5
Vcc
+1.5V
J209
NC
nBS_T
7:10H
CLK_16M
1:9D;4:11D
IC201
7C
L
K
4
3C
L
K
1
5C
L
K
3
1
REF
6
VDD
4
GND
2C
L
K
2
8
CLKOUT
TP2013
J218
0
+3.3V
R220
10k
nRDY
4:9D
J208
CKIO_SDRAM1
3:1G
CKIO_T
7:12H
TP2035
nSLFFAN_ALM
1:9H
RA237
4.7K
1 
2 
4 
3
6
5
7
8
+3.3V
R246
4.7K
TP2058
TP2059
TP2057
TP2060
TP2062
TP2063
TP2064
TP2065
L201
L202
L203
L204
TP2149
TP2150
TP2155
TP2156
+3.3V
C261
2.2u
DG
R214
10k
+3.3V
TP2292
nSLF_PRS
6:2F
ESLFID[0]
4:9C
ESLFID[1]
4:9C
nLOS_BB
1:10F
TP2038
BM_nRESET
4:9D
R212
68
CPU_nRESET
1:2B;1:3F;5D;3:7G
RA204
10k
2 
1 
3 
4
5
6
8
7
RA205
10k
1 
2 
3 
4
5
6
7
8
RA206
10k
3 
4 
1 
2
7
8
5
6
+3.3V
DG
R210
NC
CPU_RXD2
4:8C
RXD2
4:9C
nRXD2EN
4:9D
nPWRST
1:4D;3:7G;4:11D
DG
IC210
14
7
+3.3V
C258
0.01u
IC210
34
IC210
12
nBSRSTOUT
1:8A;4:1G;4:8E;5:1D
J201
J202
CPU_nRESET
1:2B;1:3F;7H;3:7G
J203
NC
J204
NC
J205
NC
IC211
1
2
4
C262
0.1u
DG
+3.3V
IC211
5
3
nLOS
6:11H
TP2015
TP2023
TP2024
TP2033
TP2031
TP2032
TP2041
TP2061
TP2050
TP2053
TP2055
TP2260
TP2177
TP2176
TP2259
TP2258
CPU_STATUS[1]
6:11H
CPU_STATUS[0]
6:11H
DG
C224
0.01u
DG
C223
0.01u
DG
C225
0.01u
DG
C226
0.01u
DG
C227
0.01u
DG
C228
0.01u
DG
C229
0.01u
DG
C230
0.01u
DG
C231
0.01u
DG
C232
0.01u
DG
C233
0.01u
DG
C234
0.01u
DG
C235
0.01u
C236
0.01u
DG
C237
0.01u
DG
C238
0.01u
DG
C202
1u
DG
DG
C239
0.01u
DG
C240
0.01u
IC200
146
D63
142
D62
138
D60
140
D61
134
D59
132
D58
130
D57
128
D56
127
D55
129
D54
131
D53
133
D52
137
D51/P19
141
D49/P17
139
D50/P18
145
D48/P16
11
D47/P15
15
D46/P14
17
D45/P13
19
D44/P12
23
D43/P11
29
D40/P8
25
D42/P10
27
D41/P9
20
D35/P3
30
D39/P7
28
D38/P6
26
D37/P5
24
D36/P4
18
D34/P2
16
D33/P1
12
D32/P0
196
VSS8
201
VDD-PLL2
202
VSS-PLL2
203
VDD-PLL1
204
VSS-PLL1
205
VDD-CPG
206
VSS-CPG
9
VDDQ1
10
VSSQ1
21
VDDQ2
22
VSSQ2
13
VDD1
14
VSS1
31
VDDQ3
32
VSSQ3
43
VDDQ4
44
VSSQ4
39
VDD2
40
VSS2
56
VDDQ5
57
VSSQ5
69
VDDQ6
70
VSSQ6
78
VDDQ7
79
VSSQ7
65
VDD3
66
VSS3
87
VDDQ8
88
VSSQ8
91
VDD4
92
VSS4
99
VDDQ9
100
VSSQ9
117
VDD5
118
VSS5
113
VDDQ10
114
VSSQ10
125
VDDQ11
126
VSSQ11
135
VDDQ12
136
VSSQ12
143
VDD6
144
VSS6
147
VDDQ13
148
VSSQ13
163
VDDQ16
178
VSSQ14
169
VDD7
162
VSS9
177
VDDQ14
188
VSSQ15
187
VDDQ15
160
VDD-RTC
159
VSS-RTC
195
VDD8
170
VSS7
DG
C248
0.01u
DG
C247
0.01u
C245
0.01u
DG
C246
0.01u
DG
C244
0.01u
DG
DG
C243
0.01u
DG
C242
0.01u
DG
C241
0.01u
DG
TP2051
TP2052
TP2040
TP2047
+3.3V
R211
10k
NC
J207
0
FIL201
1
2
3
J212
NC
IC210
11
10
TP2298
+3.3V
RA207
10k
1
2
3
4
5
6
7
8
RA212
10k
1
2
3
4
5
6
7
8
+3.3V
RA211
10k
1
2
3
4
5
6
7
8
RA210
10k
1
2
3
4
5
6
7
8
RA209
10k
1
2
3
4
5
6
7
8
RA208
10k
3
2
1
4
5
8
7
6
RA201
10k
1
2
3
45
6
7
8
RA202
10k
1
2
3
4
5
6
7
8
RA203
10k
1
2
3
4
5
6
7
8
RA216
10k
1
2
3
4
5
6
7
8
+3.3V
RA217
10k
1
2
3
4
5
6
7
8
RA215
10k
1
2
3
4
5
6
7
8
RA218
10k
1
2
3
4
5
6
7
8
+3.3V
RA219
10k
1
2
3
4
5
6
7
8
RA221
10k
1
2
3
4
5
6
7
8
RA220
10k
1
2
3
4
5
6
7
8
RA222
10k
1
2
3
4
5
6
7
8
LA
20
1
22
0
1
2
3
4
5
6
7
8
LA
20
2
22
0
1
2
3
4
5
6
7
8
LA
20
3
22
0
3
2
1
4
5
8
7
6
LA
20
4
22
0
4
3
2
1
8
7
6
5
LA
20
5
22
0
4
3
2
1
8
7
6
5
LA
20
6
22
0
4
3
2
1
8
7
6
5
RA238
68
4
3
2
1
8
7
6
5
TP2102
TP2103
TP2104
TP2105
CN103_RING_SYNC
1:11G
TP2299
TP2300
C259
0.01u
TCLK
X201
1
2
3 
4
TP2261
H-UDI
RESET SWITCH
43
KX-TDA620 Series
12.4. BUS-S Board No.3
KX-TDA620 Series BUS-S BOARD SCHEMATIC DIAGRAM No.3
3.3V
0V
3.3V
0V
D
F
E
C
B
A
H
G
4
7
6
5
3
2
8
11
10
9
D[31]
LA[13]
A[22]
A[18]
LA[4]
D[20]
LA[1]
LA[3]
A[9]
A[10]
LA[14]
A[17]
LA[9]
LD[13]
LD[2]
LA[15]
A[14]
LA[11]
LA[10]
A[12]
LA[16]
D[17]
LA[5]
D[23]
LD[9]
LD[1]
D[24]
A[19]
D[19]
D[26]
D[27]
LD[0]
A[3]
D[18]
LA[12]
LD[3]
A[4]
LD[4]
A[6]
LD[6]
LA[8]
A[2]
LA[7]
D[28]
LD[7]
D[25]
A[20]
]
9
2
[
D
]
3
1
[
A
D[16]
D[21]
D[30]
A[21]
A[11]
LD[11]
LD[10]
LA[2]
D[22]
LD[8]
A[5]
A[8]
A[7]
LD[14]
LA[6]
LD[15]
LD[5]
LD[12]
A[15]
A[13]
D[11]
D[5]
D[1]
D[12]
D[15]
A[4]
A[10]
A[11]
A[2]
A[12]
D[3]
A[7]
D[10]
D[13]
D[7]
D[14]
D[6]
A[5]
A[8]
A[6]
D[4]
A[3]
D[0]
D[9]
A[15]
D[2]
A[14]
D[8]
A[9]
LD[7]
LD[2]
LD[10]
LA[1]
LA[2]
LD[15]
LD[0]
A[18]
LD[6]
LD[8]
LA[8]
LD[12]
LD[3]
LA[10]
LD[14]
LD[5]
LD[11]
LD[4]
LA[6]
LD[13]
LA[11]
LA[9]
LA[4]
LA[13]
LD[1]
LA[5]
LA[7]
LA[1-16]
LA[14]
LA[3]
]
9
[
D
L
]
2
1
[
A
L
A[19]
nLB
nUB
L_nRD
L_nRD
L_nWE1
L_nWE0
L_nWE0
LA[15]
nCS0
nCS5
nCS4
D[4]
D[1]
LD[0]
D[6]
D[0-31]
D[0]
D[3]
D[9]
D[8]
D[15]
LD[14]
LD[12]
LD[1]
LD[3]
D[7]
D[12]
D[10]
D[13]
LD[2]
D[14]
D[5]
D[2]
LD[15]
D[11]
LD[13]
LA[1]
LA[3]
A[3]
A[10]
A[4]
LA[16]
A[7]
A[16]
LA[9]
LA[13]
A[2]
LA[6]
LA[11]
A[12]
A[6]
LA[15]
A[15]
A[14]
A[9]
A[8]
LA[5]
LA[10]
LA[4]
LA[12]
A[1]
A[11]
A[13]
A[5]
LA[7]
LA[2]
LA[8]
LA[14]
CKE
RD/nWR
nRD/nCAS
nRAS
nCS2
A[17]
LA[13]
LA[12]
LD[5]
LD[4]
LD[7]
LD[12]
LD[6]
]
2
[
D
L
]
2
[
A
L
LD[13]
LD[1]
LA[1]
LD[0]
LD[14]
LD[3]
LD[15]
LD[10]
LD[9]
LD[8]
LA[6]
LD[11]
LA[16]
LA[5]
LA[15]
LA[11]
LA[4]
LA[10]
LA[3]
LA[1-16]
LA[9]
LA[8]
LA[7]
LA[14]
LD[7]
LD[8]
LD[6]
LD[9]
LD[5]
LD[10]
LD[4]
LD[11]
LA[16]
+3.3V
+3.3V
+3.3V
DG
+3.3V
CKIO_SDRAM2
2:3F
TP3079
TP3078
C303
2.2u
TP3001
DG
DG
TP3002
DG
+3.3V
C302
1u
CKIO_SDRAM1
2:3F
C328
0.01u
R313
10k
R312
10k
EME
3D;7:10G
TP3077
R309
4.7k
DG
R310
0
NC
DG
DG
+3.3V
DG
DG
DG
DG
C315
2.2u
C314
1u
DG
DG
+3.3V
DG
DG
+3.3V
DG
DG
DG
TP3013
TP3012
C333
0.01u
C331
0.01u
DG
DG
+3.3VB
TP3080
L_nRD
8C;4:1D;4:9D
L_nWE0
1:4D;8D
CPU_nRESET
1:2B;1:3F;2:5D;2:7H
nCS0
2:5D;1D;7:10D
L_nWE1
1:4C;8D
nPWRST
1:4D;2:7H;4:11D
nCS4
1:4C;2:5E;1D;7:10D
nCS5
1:4C;2:5E;4:9D;7:12D
nCS4
1:4C;2:5E;7G;7:10D
nBACK_NEXUS
1:2B
TP3006
L_R/nW
8D;4:9D;5:1B
TP3004
TP3005
TP3003
nCS0
2:5D;7F;7:10D
R301
68
TP3018
TP3023
C313
0.01u
DG
TP3016
TP3019
TP3022
TP3029
TP3020
TP3026
TP3017
C312
0.01u
DG
TP3015
TP3025
TP3027
TP3014
+3.3V
+3.3V
TP3024
TP3028
TP3021
TP3048
RA301
22
4
3
2
1
8
7
6
5
TP3068
TP3047
IC308
1
#1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
TP3061
TP3039
RA302
22
4
3
2
1
8
7
6
5
TP3060
TP3069
TP3067
TP3073
+3.3V
IC307
1
#1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
TP3062
C324
0.1u
TP3063
TP3070
TP3043
TP3072
TP3038
DG
TP3052
TP3050
C325
0.1u
+3.3V
TP3049
RA304
22
4
3
2
1
8
7
6
5
TP3071
TP3074
DG
TP3064
TP3042
6
6
0
3
P
T
4
4
0
3
P
T
TP3040
RA303
22
4
3
2
1
8
7
6
5
TP3065
TP3075
TP3041
TP3046
TP3045
TP3053
TP3051
nCS2
2:5D
nWE2/DQM2
2:5F;6D;7:10G
nWE3/DQM3
2:5F;6D;7:12G
nRAS
2:5E;7:12H
nRD/nCAS
1:4C;2:5E;6C;7:12G
RD/nWR
2:5E;6D;7:10G
nWE1/DQM1
2:5F;6D;7:12G
nWE0/DQM0
2:5F;6D;7:10G
CKE
2:6F
A[1-22]
1:3A;2:1A;7:8C
D[0-31]
2:1A;7:8A
RA311
10k
1
2
3
4
5
6
7
8
RA310
10k
1
2
3
4
5
6
7
8
RA307
10k
1
2
3
4
5
6
7
8
RA306
10k
1
2
3
4
5
6
7
8
RA305
10k
1
2
3
4
5
6
7
8
V
3
.
3
+
V
3
.
3
+
RA312
10k
1
2
3
4
5
6
7
8
RA309
10k
1
2
3
4
5
6
7
8
RA308
10k
1
2
3
4
5
6
7
8
LA[1-16]
1:3A;4:1C;5:1B
LD[0-15]
1:3B;4:1E;5:1A
+3.3V
DG
C301
0.01u
IC309
1
#1G
2
1A1
3
2Y4
4
1A2
5
2Y3
6
1A3
7
2Y2
8
1A4
9
2Y1
10
GND
11
2A1
12
1Y4
13
2A2
14
1Y3
15
2A3
16
1Y2
17
2A4
18
1Y1
19
#2G
20
VCC
nWE1/DQM1
2:5F;1F;7:12G
nWE0/DQM0
2:5F;1G;7:10G
nRD/nCAS
1:4C;2:5E;1F;7:12G
L_nWE1
1:4C;7H
TP3054
L_nWE0
1:4D;7H
L_nRD
7H;4:1D;4:9D
TP3055
TP3031
TP3030
TP3056
TP3032
nWE2/DQM2
2:5F;3G;7:10G
nWE3/DQM3
2:5F;3F;7:12G
RD/nWR
2:5E;1F;7:10G
R307
68
TP3058
R308
68
L_R/nW
2B;4:9D;5:1B
7
5
0
3
P
T
3
3
0
3
P
T
R306
68
9
5
0
3
P
T
5
3
0
3
P
T
TP3034
+3.3V
C326
0.1u
DG
DG
TP3036
TP3037
IC210
56
IC210
98
+3.3V
DG
C327
0.1u
C323
0.1u
DG
C311
0.1u
DG
+3.3V
R302
68
TP3081
TP3007
TP3009
TP3010
TP3008
J301
TP3082
TP3083
TP3084
L_nWE
4:9D
IC303
FLASH ROM
1
A15
2
A14
3
A13
4
A12
5
A11
6
A10
7
A9
8
A8
9
A19
10
A20
11
#WE
12
#RESET
14
#WP/ACC
15
RY/#BY
16
A18
17
A17
18
A7
19
A6
20
A5
21
A4
22
A3
23
A2
24
A1
25
A0
26
#CE
27
VSS27
28
#OE
29
DQ0
30
DQ8
31
DQ1
32
DQ9
33
DQ2
34
DQ10
35
DQ3
36
DQ11
37
VCC
38
DQ4
39
DQ12
40
DQ5
41
DQ13
42
DQ6
43
DQ14
44
DQ7
45
DQ15/A-1
46
VSS46
47
#BYTE
48
A16
13
A21
IC304
1A
4
2A
3
3A
2
4A
1
5A
0
6
#CS1
7
I/O0
8
I/O1
9
I/O2
10
I/O3
11
VDD11
12
GND12
13
I/O4
14
I/O5
15
I/O6
16
I/O7
17
#WE
18
A17
19
A16
20
A15
21
A14
22
A13
23
A12
24
A11
25
A10
26
A9
27
A8
28
ACS2/A18
29
I/O8
30
I/O9
31
I/O10
32
I/O11
33
VDD33
34
GND34
35
I/O12
36
I/O13
37
I/O14
38
I/O15
39
#LB
40
#UB
41
#OE
42
A7
43
A6
44
A5
TP3076
DG
DG
DG
DG
DG
C309
0.1u
C306
0.1u
C304
0.1u
C310
0.1u
C308
0.1u
C307
0.1u
C305
0.1u
C321
0.1u
C318
0.1u
C316
0.1u
C322
0.1u
C320
0.1u
C319
0.1u
C317
0.1u
R311
68
RA313
68
4
3
2
1
8
7
6
5
R314
68
IC313
NC
1
2
4
DG
IC313
5
3
C334
0.1u
+3.3V
TP3085
EME
7G;7:10G
R303
68
TP3011
TP3086
TP3087
+3.3VB
DG
C335
0.1u
TP3088
nCS_CTSW
2:5E;4:11E;5:1B;7:10D
nCS_CCLINK
2:5D;4:11E;4:1B;7:12D
IC322
24
1
IC323
24
1
TP3089
IC322
5
3
C336
0.1u
IC323
5
3
DG
+3.3V
+3.3V
TP3090
TP3091
IC310
1
2
3
IC310
4
5
6
IC310
9
10
8
IC310
12
13
11
IC310
14
7
IC312
12
13
11
IC312
1
2
3
IC312
4
5
6
IC312
9
10
8
IC312
14
7
IC301
SDRAM
1
VDD1
2
DQ0
3
VDDQ3
4
DQ1
5
DQ2
6
VSSQ6
7
DQ3
8
DQ4
9
VDDQ9
10
DQ5
11
DQ6
12
VSSQ12
13
DQ7
14
VDD14
15
LDQM
16
#WE
17
#CAS
18
#RAS
19
#CS
20
A13(BA0)
21
A12(BA1)
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VDD27
28
VSS28
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC36
37
CKE
38
CLK
39
UDQM
40
NC40
41
VSS41
42
DQ8
43
VDDQ43
44
DQ9
45
DQ10
46
VSSQ46
47
DQ11
48
DQ12
49
VDDQ49
50
DQ13
51
DQ14
52
VSSQ52
53
DQ15
54
VSS54
IC302
SDRAM
1
VDD1
2
DQ0
3
VDDQ3
4
DQ1
5
DQ2
6
VSSQ6
7
DQ3
8
DQ4
9
VDDQ9
10
DQ5
11
DQ6
12
VSSQ12
13
DQ7
14
VDD14
15
LDQM
16
#WE
17
#CAS
18
#RAS
19
#CS
20
A13(BA0)
21
A12(BA1)
22
A10/AP
23
A0
24
A1
25
A2
26
A3
27
VDD27
28
VSS28
29
A4
30
A5
31
A6
32
A7
33
A8
34
A9
35
A11
36
NC36
37
CKE
38
CLK
39
UDQM
40
NC40
41
VSS41
42
DQ8
43
VDDQ43
44
DQ9
45
DQ10
46
VSSQ46
47
DQ11
48
DQ12
49
VDDQ49
50
DQ13
51
DQ14
52
VSSQ52
53
DQ15
54
VSS54
IC306
74LVC245
1D
IR
2A
1
3A
2
4A
3
5A
4
6A
5
7A
6
8A
7
9A
8
1
0
GND
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
/2G
20
VCC
IC305
74LVC245
1D
IR
2A
1
3A
2
4A
3
5A
4
6A
5
7A
6
8A
7
9A
8
1
0
GND
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
/2G
20
VCC
IC311
5
3
IC311
1
2
4
IC320
5
3
IC320
1
2
4
44
KX-TDA620 Series
12.5. BUS-S Board No.4
4
Normal 3.3V
Normal 3.3V
KX-TDA620 Series BUS-S BOARD SCHEMATIC DIAGRAM No.4
Normal 3.3V
Normal 3.3V
5
3.3V
0V
D
F
E
C
B
A
H
G
4
7
6
5
3
2
8
11
10
9
LA[3]
LA[1-5]
LA[1]
LA[4]
LA[5]
LD[0]
LD[1]
LD[2]
LD[3]
LD[4]
LD[5]
LD[6]
LD[7]
LD[8]
LD[9]
LD[10]
LD[11]
LD[12]
LD[13]
LD[14]
LD[15]
LA[2]
LD[0-15]
1:3B;3:11A;5:1A
nDIAG_CLINK
1:5G
LA[1-5]
1:3A;3:11A;5:1B
C421
0.01u
DG
DG
G
D
G
D
+3.3V
DG
nCS_CCLINK
2:5D;3:1C;11E;7:12D
nCMIBYP
1:5G
C402
0.01u
DG
+3.3V
+3.3V
C401
0.01u
DG
+3.3V
C403
0.01u
DG
+3.3V
C411
0.01u
DG
C416
0.01u
+3.3V
DG
DG
+3.3V
DG
C419
0.01u
C415
220P
DG
+3.3V
C407
0.01u
+3.3V
DG
DG
DG
C414
0.01u
DG
+3.3V
+3.3V
DG
+3.3V
C409
0.01u
+3.3V
DG
nHUBON
1:5G
L_nRD
3:7H;3:8C;9D
nWR_CCLINK
11E
nBSRSTOUT
1:8A;2:5D;8E;5:1D
DG
DG
DG
J403
NC
J402
NC
R403
68
+3.3V
R402
68
CCLINK_TXD
6:11G
CCLINK_TXEN
6:11G
CCLINK_RXD
6:11G
IC410
17
TP4056
TP4046
TP4047
TP4048
TP4049
TP4050
TP4052
TP4053
TP4054
TP4055
TP4051
TP4039
TP4040
TP4041
TP4042
TP4043
TP4044
TP
40
33
TP
40
32
TP
40
30
TP
40
29
TP
40
28
TP
40
27
TP
40
19
TP
40
10
TP
40
08
TP
40
23
TP4006
TP4004
TP4003
TP
40
34
TP
40
36
TP
40
37
TP
40
38
TP
40
22
TP
40
09
TP
40
11
TP
40
12
nWAIT_NEXUS
1:4D
CLK_16M 1:9D;2:5G
nPWRST 1:4D;2:7H;3:7G
RING_SYNC 1:9G
C426
0.01u
C427
0.01u
C428
0.01u
C435
0.01u
C439
0.01u
C442
0.01u
C431
0.01u
C443
0.01u
L_R/nW
3:2B;3:8D;5:1B
L_nRD
3:7H;3:8C;1D
C436
0.01u
J401
+3.3V
TP4045
DG
+3.3V
nIRQ_CCLINK
2:11D
IC410
62
TP4001
TP4007
TP
40
13
TP
40
14
TP
40
16
TP
40
17
8
5
0
4
P
T
7
5
0
4
P
T
TP4059
R401
47
R407
68
R408
1M
R409
47
FIL401
1
2
3
X401
40MHz
1
2
3
4
C423
22p
C424
22p
S_nRESET
6:11D
S_RING_SYNC
6:11D
S_ESLFID[0]
6:2F
S_ESLFID[1]
6:2E
ESLFID[1]
2:4D
ESLFID[0]
2:4D
RXD2
2:9H
CPU_RXD2
2:9H
nRXD2EN
2:4C
nRDY
2:5E
L_nWE
3:11F
R413
68
BM_nRESET
2:5H
nCS_CTSW
2:5E;3:1D;5:1B;7:10D
nCS_CCLINK
2:5D;3:1C;1B;7:12D
nWR_CCLINK
1D
R412
68
nDS
5:1B
R411
68
+3.3V
nDTACK
5:1B
TP4061
FIL402
1
2
3
IC410
3
5
C425
0.01u
IC410
8
4
+3.3V
DG
TP4134
TP4135
R417
33
nBSRSTOUT
1:8A;2:5D;1G;5:1D
IC113
11
CLK
12
D
9
Q
10
SET
13
RESET
8
Q
+3.3V
R415
68
CLK_20M
5:2F
TP4096
IC113
14
7
C445
0.01u
DG
+3.3V
FIL403
1
2
3
DG
DG
DG
C774
C775
nCS5
1:4C;2:5E;3:1D;7:12D
+3.3V
RA401
10K
1 
2 
3 
4
5
6
7
8
+3.3V
RA402
10K
1 
2 
3 
4
5
6
7
8
+3.3V
R406
10K
R420
10K
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
R419
10K
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
+3.3V
R405
10K
R404
10K
CKIO_NEXUS 1:4D;2:3F
R418
10K
R414
10K
R410
1K
CLK_20M
CLK_40M
IC401
1
VDD1
2
A3/PO3
3
A4/PO4
4
A5/PO5
5
NC5
6
NC6
7
nDSINV/CMIERRMD
8
nRD(nDS)/PO6
9
nTMODE
10
nWR(DIR)/PO7
11
nSMODE
12
VSS12
13
D0(AD0)/PI0(nPISTR)
14
D1(AD1)/PI1
15
D2(AD2)/PI2
16
D3(AD3)/PI3
17
VDD17
18
D4(AD4)/PI4
19
D5(AD5)/PI5
20
VSS20
21
D6/PI6
22
D7/PI7
23
D8/PI8
24
D9/PI9
25
VDD25
26
D10/PI10
27
D11/PI11
28
VSS28
29
D12/PI12
30
D13/PI13
31
NC31
32
VSS32
33
VDD33
34
D14/PI14
35
D15/PI15
36
NC36
37
NC37
38
nRESET
39
VSS39
40
nINTR/NSTUNLOC
41
TXEN
42
TXD
43
TXEN2
44
VSS44
45
TXENPOL
46
RXIN
47
ET1
48
RXIN2
49
VDD49
50
nDIAG
51
nSTALONE
52
NSTPRE0
53
NSTPRE1
54
NSTPRE2
55
NC55
56
PS0
57
PS1
58
NC58
59
NID0
60
NID1
61
NID2
62
NID3
63
NID4
64
VSS64
65
VDD65
66
NC66
67
MAXID0
68
MAXID1
69
MAXID2
70
MAXID3
71
MAXID4
72
NC72
73
CKP0
74
CKP1
75
CKP2
76
VSS76
77
NC77
78
NC78
79
NC79
80
MCKIN
81
VDD81
82
X1
83
X2
84
VSS84
85
nNSTCOUT
86
FLASHO
87
(Open)/PO8
88
(Open)/PO9
89
(Open)/PO10
90
VSS90
91
(Open)/PO11
92
(Open)/PO12
93
(Open)/PO13
94
(Open)/PO14
95
(Open)/PO15
96
VSS96
97
VDD97
98
WPRE0/SPRE0
99
WPRE1/SPRE1
100
WPRE2/SPRE2
101
NC101
102
nTEST0
103
nTEST1
104
nTEST2
105
nTEST3
106
(High)/NSTC0
107
nEHRD/NSTC1
108
VSS108
109
nEHWR/NSTC2
110
(High)/NSTC3
111
nCMIBYP
112
nOPMD
113
VDD113
114
nHUBON
115
NC115
116
nMUX/SCM0
117
nRWM/SCM1
118
W16/SCM2
119
nSWAP/SCM3
120
nCS/SCM4
121
VSS121
122
NC122
123
NC123
124
A0/PO0(nPOSTR)
125
VDD125
126
A1/PO1
127
A2(ALE)/PO2
128
VSS128
X402
40MHz
NC
+3.3V
+3.3V
C429
0.01u
G
D
G
D
R422
0
R423
NC
+3.3V
DG
R424
4.7K
R425
2.2K
DG
+3.3V
J404
NC
J405
J406
R426
10k
+3.3V
C446
0.1u
DG
TP4126
TP4127
TP4132
TP4130
TP4125
TP4131
TP4063
TP4062
TP4128
TP4136
TP4137
TP4082
DG-
TCK
TMS
+3.3V-
TDO
TDI
IC402
1
ESLFID_1
2
ESLFID_0
3
CPU_RXD2
4
RXD2
5
VCC
6
GND
7
nRXD2_EN
8
9
10
11
12
13
19
20
21
BM_nRESET
22
GND
23
VCC
24
nWAIT_NEXUS
25
nRDY
26
VCC
27
L_nWE
28
nCS_NEXUS
29
L_nRD
30
L_RnW
31
32
33
GND
34
35
36
37
38
39
40
61
NC
62
nDTACK
63
64
65
66
67
68
69
70
71
72
GND
73
VCC
74
75
76
77
78
79
GND
80
VCC
81
PROGRAMN/RESET
82
JTAGENB
83
84
RING_SYNC
85
86
CLKIO/nRST
87
88
SYSCLK
89
90
TMS
91
TCK
92
GND
93
VCC
94
TDI
95
TDO
96
97
98
99
nPWRST
100
VCC
15
17
14
16
18
41
42
S_ESLFID_1
43
S_ESLFID_0
44
GND
45
S_RING_SYNC
46
VCC
47
S_nRESET
48
49
50
15
C
C
V
52
53
54
55
VCC
56
GND
57
nCS_CTSW
58
nCS_CCLNK
59
nWR_CCLNK
60
nDS
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
Internal P.U.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
In
te
rn
al
 P
.U
.
Circ-Link
Internal P.U.
Internal P.U.
In
te
rn
al
 P
.U
.
Internal P.U.
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