Sharp ER-A450 (serv.man2) Service Manual ▷ View online
2. Description of main LSI’s
2-1. CPU (HD6415108-10)
1) Pin configuration
HD6415108-10 pin configuration
Fig. 2-1
RES
NMI
VSS
P10
P11
P12
P12
P13
P14
P15
P16
P17
D0
D1
D2
D2
D3
D4
D5
D6
D7
VSS
A0
A1
A1
A2
A3
A4
A5
A6
A7
1
2
3
4
5
6
6
7
8
9
10
11
12
13
14
14
15
16
17
18
19
20
21
22
22
23
24
25
26
27
28
STBY
MD2
MD1
MD0
VCC
RFSH
LWR
HWR
RD
AS
E
VSS
XTAL
EXTAL
VSS
TX
D2
RXD2
TX
D1
RXD1
SCK2
UASKC
IR
Q1
IR
Q0
VCC
AVCC
AN3
AN2
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
P41
P42
P43
P44
P45
P46
P47
VSS
P50
P51
P52
P53
P54
P55
P56
P57/STOP
P60
P61
P62
P63
P64
P65
P66
P67
VSS
AVSS
AN0
AN1
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
78
80
81
82
83
84
A8
A9
A10
A11
A12
A13
A14
A15
VSS
A16
A17
A18
A19
A20
A21
A22
A23
VSS
WAIT
BACK
BREQ
P33
P34
P35
P36
P37
VCC
P40
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
X
4 – 2
2) Block diagram
Fig. 2-2
P47
FTI2
P45
FTI1
P43
P42
P41/TMCI
P40
P37
P36
P35
P34
P33
BREQ
BACK
WAIT
P27/A23
P26/A22
P25/A21
P24/A20
P23/A19
P22/A18
P21/A17
P20/A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
VCC
VCC
VCC
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
AVCC
AVSS
MD2
MD1
MD0
RES
STBY
NMI
AS
RD
HWR
LWR
RFSH
EXTAL
XTAL
E
P17
P16
P15
P14
P13
P12
P11
P10
D7
D6
D5
D4
D3
D2
D1
D0
STOP/P57
P56
FM
RS
P54
P53
P52
P51
P50
P67
P66
RS/P65
RR/P64
CD/P63
CS/P62
DR/P61
ER/P60
P73
AN2
AN1
AN0
TX
D2
RXD2
TX
D1
RXD1
SCK2
IR
Q2
IR
Q1
IR
Q0
H8/500 CPU
DTC
Serial
communication
interface x 2ch
communication
interface x 2ch
8bit timer
16bit free running
timer x 2ch
timer x 2ch
Refresh controller
Wait state
controller
controller
A/D convertor
Interruption controller
Clock
oscillator
oscillator
Watch
dog timer
dog timer
Data bus
Port 1
Data bus (Lower)
Data bus (Upper)
Address bus
Port 2
Port 3
Port 4
Port 5
Port 6
Port 7
Port 8
Address bus
X
4 – 3
3) Pin description
PIN
No.
SYMBOL
SIGNAL
NAME
IN/
OUT
FUNCTION
1
IN
RESET INPUT from CKDC WUTH
BUFFER
BUFFER
2
IN
NON-MASKABLE INTERRUPT INPUT
FOR SSP INTERRUPT INPUT
FOR SSP INTERRUPT INPUT
3
VSS
VSS
GND
4
P10
ERC
OUT
EVENT READ CANCEL (to CKDC)
5
P11
LDRQ
OUT
LOAD REQUEST (to CKDC)
6
P12
/SHEN
IN
SHIFT ENABLE (from CKDC)
7
P13
/FRES
OUT
FISCAL MEMORY RESET (NU)
8
P14
BUSY
IN
FISCAL MEMORY BUSY (NU) Pull-up
9
IN
FISCAL MEMORY READY (NU)
Pull-up
Pull-up
10
IN
POP-UP DISPLAY SENSOR (NU)
Pull-up
Pull-up
11
P17
IN
GND Nu
12
D0
D0
I/O
DATA BUS 0
13
D1
D1
I/O
DATA BUS 1
14
D2
D2
I/O
DATA BUS 2
15
D3
D3
I/O
DATA BUS 3
16
D4
D4
I/O
DATA BUS 4
17
D5
D5
I/O
DATA BUS 5
18
D6
D6
I/O
DATA BUS 6
19
D7
D7
I/O
DATA BUS 7
20
VSS
VSS
GND
21
A0
A0
OUT
ADDRESS BUS 0
22
A1
A1
OUT
ADDRESS BUS 1
23
A2
A2
OUT
ADDRESS BUS 2
24
A3
A3
OUT
ADDRESS BUS 3
25
A4
A4
OUT
ADDRESS BUS 4
26
A5
A5
OUT
ADDRESS BUS 5
27
A6
A6
OUT
ADDRESS BUS 6
28
A7
A7
OUT
ADDRESS BUS 7
29
A8
A8
OUT
ADDRESS BUS 8
30
A9
A9
OUT
ADDRESS BUS 9
31
A10
A10
OUT
ADDRESS BUS 10
32
A11
A11
OUT
ADDRESS BUS 11
33
A12
A12
OUT
ADDRESS BUS 12
34
A13
A13
OUT
ADDRESS BUS 13
35
A14
A14
OUT
ADDRESS BUS 14
36
A15
A15
OUT
ADDRESS BUS 15
37
VSS
VSS
GND
38
A16
A16
OUT
ADDRESS BUS 16
39
A17
A17
OUT
ADDRESS BUS 17
40
A18
A18
OUT
ADDRESS BUS 18
41
A19
A19
OUT
ADDRESS BUS 19
42
A20
A20
OUT
ADDRESS BUS 20
43
A21
A21
OUT
ADDRESS BUS 21
44
A22
A22
OUT
ADDRESS BUS 22
45
A23
A23
OUT
ADDRESS BUS 23
46
VSS
VSS
GND
47
/WAIT
/WAIT
IN
Wait signal from MPCA
48
OUT
Bus control request acknowl edge (Nu)
49
/BREQ
/BREQ
IN
Bus control request (Nu) pull-up
50
P33
DOPS
IN
Drawer open sencer signal
51
P34
/DR0
OUT
Drawer open drive signal
52
P35
/DR1
OUT
Option drawer 1 drive signal
53
P36
NU
IN
(Nu) GND
54
P37
NU
IN
(Nu) GND
55
VCC
VCC
+5V
56
P40
/IFV
IN
Slip printer enable (Nu) pull-up
57
IN
Printer (Dp-730) timing signal from
MPCA
MPCA
PIN
No.
SYMBOL
SIGNAL
NAME
IN/
OUT
FUNCTION
58
P42
/TOF
IN
Slip TOF signal (Nu) pull-up
59
P43
/BOF
IN
Slip BOF signal (Nu) pull-up
60
IN
Printer (Dp-730) Reset signal from
MPCA
MPCA
61
P45
/NEJ
IN
Near END signal jounal
62
IN
CKDC interface shift enable signal (NU)
GND
GND
63
P47
/NER
IN
Near END signal receipt
64
VSS
VSS
GND
65
P50
TRG1
OUT
Dot pulse adjust signal
66
P51
/PSTOP
OUT
Nu
67
P52
/CKDCR2
OUT
Nu
68
P53
OPDS
IN
Nu (GND)
69
P54
FVPON
OUT
Nu
70
P55
FMRS
IN
Nu (GND)
71
P56
/SLIPLMP
OUT
Nu
72
P57
/STOP
OUT
Nu
73
OUT
ER signal for RS232 (Equipment
Ready)
Ready)
74
IN
DR signal for RS232 (Data set Ready)
75
IN
CS signal for RS232 (Clear to Send)
76
IN
CD signal for RS232 (Carrier Detect)
77
OUT
RR signal for RS232 (Ready to
Receive) (Nu)
Receive) (Nu)
78
OUT
RS signal for RS232 (Request to Send)
79
IN
CI signal for RS232 (Calling Indicator)
80
IN
Printer (Dp-730) Home position pulse
81
VSS
VSS
GND
82
AVSS
AVSS
IN
GND
83
P70
VPJ
IN
Validation sensor journal (NU) GND
84
P71
VPR
IN
Validation sensor receipt (NU) GND
85
P72
VPTEST
IN
+24V test input
86
P73
IN
Validation sense signal (Nu) GND
87
AVCC
AVCC
IN
+5V
88
VCC
VCC
+5V
89
P80
/iRQ0
IN
Interrupt signal 0 from MPCA
90
IN
Interrupt signal from OPTION PWB
91
P82
/iRQ2
IN
Interrupt signal (Nu) pull-up
92
P83
SCK2
OUT
CKDC & FMC i/F sync shift clock
93
P84
RXD
IN
RS232C RECEIVE DATA
94
P85
TXD
OUT
RS232C SEND DATA
95
IN
CKDC, Fiscal memory unit I/F shift
input data
input data
96
OUT
CKDC, Fiscal memory unit I/F shift
output data
output data
97
VSS
VSS
GND
98
EXTAL
EXTAL
IN
X-TAL (14.7456MHz)
99
XTAL
XTAL
IN
X-TAL (14.7456MHz)
100 VSS
VSS
GND
101
φ
φ
OUT
System clock (7.3728MHz)
102 E
OUT
E clock (NU)
103 /AS
/AS
OUT
Address strobe
104 /RD
/RD
OUT
Read
105 /HWR
/WR
OUT
Write
106 /LWR
OUT
Nu
107 /RFSH
/RFSH
OUT
Refresh cycle (NU)
108 VCC
VCC
+5V
109 MD0
MD0
IN
+5V (MODE 3)
110 MD1
MD1
IN
+5V (MODE 3)
111 MD2
MD2
IN
GND (MODE 3)
112 /STBY
/STBY
IN
+5V (Nu)
4 – 4
2-2. G.A (MPCA7)
1) Pin configuration
GATE ARRAY (LZ9AH39)
MPCA7
Fig. 2-3
1
RF
2
JF
3
PCUT
4
FCUT
5
VF
6
STAMP
7
SLF
8
SLRS
9
SLMTD
10
RES
11
TRG
12
TRG
13
POFF
14
INT1
15
HTS1
16
SCK1
17
STH1
18
NU
19
NU
20
VCC
21
GND
22
NU
23
VRESC
24
SLTMG
25
SLRST
26
AS
27
RD
28
WR
29
PHAI
30
SDT7
31
SDT6
32
SDT5
33
GND
34
SDT4
35
SDT3
36
SDT2
37
SDT1
38
D0
39
D1
40
D2
16
0
N
U
159
D
O
T
E
N
158
T
W
A
IT
157
N
U
15
6
N
U
155
N
U
154
N
U
153
N
U
15
2
S
TH
2
151
S
C
K
2
150
H
T
S
2
149
S
L
M
T
R
14
8
S
L
M
T
S
147
S
L
MT
D
146
R
JM
T
R
145
R
A
S
3
14
4
N
U
14
3
G
N
D
142
V
C
C
141
A
S
K
R
X
140
N
U
13
9
N
U
138
N
U
137
R
JM
T
D
136
R
JM
T
S
13
5
D
T
5
134
D
T
6
133
D
T
7
132
G
N
D
13
1
D
T
1
130
D
T
2
129
D
T
3
128
D
T
4
12
7
R
JT
MG
1
2
6
RJ
RST
125
R
A
S
1
124
R
A
S
2
12
3
R
O
S
2
12
2
R
O
S
1
121
O
P
T
C
S
41
D3
42
GND
43
D4
44
D5
45
D6
46
D7
47
SSPRQ
48
RESET
49
INT
2
50
IN
T
3
51
RXDI
52
TX
D
I
53
SC
K
I
54
IR
Q
0
55
A0
56
A1
57
A2
58
A3
59
A4
60
A5
61
GN
D
62
VCC
63
A6
64
A7
65
A8
66
A9
67
A1
0
68
A1
1
69
A1
2
70
A1
3
71
A1
4
72
A1
5
73
A1
6
74
A1
7
75
A1
8
76
A1
9
77
A2
0
78
A2
1
79
A2
2
80
NU
120
EXINT0
119
EXINT1
118
EXINT2
117
EXINT3
116
WRO
115
RDO
114
RA15
113
RA16
112
GND
111
RA17
110
RA18
109
EXWAIT
108
WAIT
107
NU
106
MCR1
105
NU
104
DAX1
103
RCKX
102
IRRX
101
GND
100
VCC
99
UATX
98
UARX
97
UASCK
96
IRTX
95
RCO
94
NU
93
NU
92
NU
91
NU
90
MA15
89
TEST
88
MD0
87
MD1
86
IPLON
85
INT4
84
PRST
83
PTMG
82
TRGI
81
A23
4 – 5
Click on the first or last page to see other ER-A450 (serv.man2) service manuals if exist.