Panasonic KX-TDA6382X / KX-TDA6382SX Service Manual ▷ View online
8
KX-TDA6382X/KX-TDA6382SX
4.2.
Circuit Operations
4.2.1.
Description of Control System Circuits
4.2.1.1.
Reset
On startup, releasing the ASIC reset is executed by EC_nRST through MPR.
After releasing the ASIC, the local reset signal should be sent to CODEC by releasing the soft rest from MPR, and CODEC fac-
tor should be downloaded from MPR.
After releasing the ASIC, the local reset signal should be sent to CODEC by releasing the soft rest from MPR, and CODEC fac-
tor should be downloaded from MPR.
• LED operational state display LED (2 colors)
Red ON: Fault (includes RESET)
Green ON: INS (line free)
Green flash (60/sec): INS (line busy)
Red flash (60/sec): OUS
OFF: the power section failure
Green ON: INS (line free)
Green flash (60/sec): INS (line busy)
Red flash (60/sec): OUS
OFF: the power section failure
4.2.1.2.
Local Highway Interface
Packs 2.048, 4.096, 8.192 MHz highway (Max.64 timeslot). (voice communication bus in the circuit board)
The PCM data of arbitrary streams 0~15 (128 timeslot / 1 stream) on the CT bus can switch to the arbitrary local highway (64
timeslot) by the local TSW.
The timeslot configuration example of the local highway is shown below.
Timeslots between slot 8 and slot 15 are used by the Sub Board.
The PCM data of arbitrary streams 0~15 (128 timeslot / 1 stream) on the CT bus can switch to the arbitrary local highway (64
timeslot) by the local TSW.
The timeslot configuration example of the local highway is shown below.
Timeslots between slot 8 and slot 15 are used by the Sub Board.
Slot
PCM Data
Slot
PCM Data
Slot
PCM Data
0
CO#1
16
Not used
32-63
Not used
1
CO#2
17
Not used
2
CO#3
18
Not used
3
CO#4
19
Not used
4
CO#5
20
Not used
5
CO#6
21
Not used
6
CO#7
22
Not used
7
CO#8
23
Not used
8
CO#9
24
Not used
9
CO#10
25
Not used
10
CO#11
26
Not used
11
CO#12
27
Not used
12
CO#13
28
Not used
13
CO#14
29
Not used
14
CO#15
30
Not used
15
CO#16
31
Not used
Software reset
EC_nRST
IC3
Reset IC
IC4
+5V
+3.3V
+3.3V
+3.3V
(Green)
LED
(Red)
P22
P23
nHALT
U1-1/2
Q3
System reset in ASIC
E
C
B
U
S
C
B
U
S
LPR reset
ASIC
RST
LED
CPU
IC401
nlRQ0
nRES
9
KX-TDA6382X/KX-TDA6382SX
4.2.1.3.
ASIC...IC3
• EC bus Interface
16bit/8MHz two-way address data multiplex self-bus (communication bus with MPR)
• CT bus Interface
Supports eight of 8.192MHz highway (128 timeslot) (voice communication bus with MPR)
• Local TSW
Timeslot switching between CT bus (1024ch) and local highway (64ch)
(Timeslot switching between the voice communication bus in MPR and that in the circuit board)
(Timeslot switching between the voice communication bus in MPR and that in the circuit board)
• Local Gain Control
Gain control of the local highway up-down 64ch by 1dB/step randomly
• GPIO Interface
A parallel interface that can be set in random interactively
Refer to IC3 (ASIC) (P.64).
Refer to IC3 (ASIC) (P.64).
Host-EC
bridge
(slave)
CT_IF
Local
TSW
Host
Local-bus I/F
DPLL
JTAG
GAIN
Internal Highway
Internal bus
System bus
APT
controller
HDLC
8ch
FIFO/
DPRAM
DPT
controller
Local
Highway I/F
PT
DR/RV
GPIO
CODEC
Controller
RT_SND
CS-IF
Local
Bus
EC
CT
Highway
PT-I/F
GPIO-i/f
CS-I/F
10
KX-TDA6382X/KX-TDA6382SX
4.2.1.4.
8-Port Sub Board
8-Port Sub Board is mounterd to Main Board.
DT_OE[15]
DT_OE[11]
DT_OE[13]
DT_OE[12]
DT_OE[14]
DT_OE[8]
DT_OE[9]
DT_OE[8-15]
D[0-7]
DT_OE[10]
DT_OE[13]
DT_OE[15]
LA[0-5]
DT_OE[9]
R[14]
R[15]
R[8]
R[10]
R[9]
R[11]
R[13]
R[12]
T[8]
DT_OE[8]
LA[1]
LA[2]
LA[5]
D[0]
D[1]
D[2]
D[3]
D[4]
D[5]
D[6]
D[7]
LA[4]
LA[0]
LA[3]
DT_OE[12]
T[9]
T[10]
T[11]
T[12]
T[13]
T[14]
T[15]
DT_OE[11]
DT_OE[14]
DT_OE[10]
OPT[1]
DG
DG
CLK
FH
DHW
UHW
C_CS[2]
C_CS[3]
DCLK
DIN
DOUT
DG
+5V
nRD
CLK
nWR
nCS_CID[1]
nRST
11
19
31
17
18
49
57
22
56
28
52
21
51
48
55
2
1
47
3
29
30
59
34
33
53
23
4
45
60
17
25
27
15
13
19
26
54
6
5
7
38
3
9
32
12
8
8
13
CN8
5
24
20
46
50
16
43
40
58
39
7
10
15
41
11
42
14
36
35
6
37
9
12
44
CN2
12
34
CN2
9
CN2
10
35
37
CN2
11
36
CN2
13
38
CN2
14
39
CN2
15
40
CN2
16
41
5
6
7
8
5
6
7
8
CN6
1
2
14
16
18
4
10
20
J1I
J1J
J1K
J1L
J1M
J1N
J1O
J1P
SFG
+3.3V
+2.5V
DG
TH1I
TH1J
TH1K
TH1L
TH1M
TH1N
TH1O
TH1P
+15V
DG
C
928
C
929
C
930
C
931
SFG
C9
1
C9
0
RA
6
R
A
5
11
KX-TDA6382X/KX-TDA6382SX
4.2.2.
Description of Functions and Circuits
4.2.2.1.
Dial Pulse Signal Transmission
Transmits 10pps/20pps dial pulse by a open/close action between Tip and Ring with Photo MOS relay.
The make width, break width and inter digital width for 10pps/20pps can be set respectively.
When making, 37pin (DIAL [0]) of IC6 becomes Low level, and RL3 turns ON. When breaking, 37pin (DIAL [0]) of IC6 becomes
High level, and RL3 turns OFF.
The make width, break width and inter digital width for 10pps/20pps can be set respectively.
When making, 37pin (DIAL [0]) of IC6 becomes Low level, and RL3 turns ON. When breaking, 37pin (DIAL [0]) of IC6 becomes
High level, and RL3 turns OFF.
It provides the SHUNT control function for the stabilization of line power depending on the destination. Turning ON PC5 when
transmitting pulse reduces the impedance at making, and stabilizes the line power.
transmitting pulse reduces the impedance at making, and stabilizes the line power.
4.2.2.2.
Circuit For Line Acquisition
Making CODEC (e.g. pin-37 of IC6, DIAL [0]) Low level, the photo MOS relay (RL3) turns ON and the line is acquired.
It is used in common as Dial Pulse transmitting circuit.
It is used in common as Dial Pulse transmitting circuit.
DC Loop Path:
• Ring
• Ring
L1D1D2J7D3RL3Q4(C-E)D4D3L1TH1Tip
• Tip
TH1L1D3D4Q4(C-E)RL3D3J7D2D1L1Ring
R[0]
T[0]
AG
+5V
DG
DG
DG
DG
DG
+5V
+5V
+5V
+5V
+5V
SFG
R
20A
PC5A
1
2
3
4
R
17A
D2A
R3
A
T1A
2
1
3
4
C1
A
C2
A
C4
A
C8A
D1A
D4
A
R21A
R
11A
R
14A
R15A
R16A
R1
8
A
R
19A
R1
A
R22A
R2
A
R4A
1.2K
R5
A
R6
A
J1A
RL
2
A
4
3
2
1
J4A
PC1A
1
23
4
PC2A
1
2
3
4
PC
4
A
1
2
3
4
L1A
1
2
3
4
C3
A
CN3 2
CN3 3
J7
A
C6
A
C7A
Q5A
E
C
B
ZN
R
2
A
CN2
1
26
D3A
1
2
3
4
TH1A
ZN
R
1
A
RL3A
4
3
2
1
D5
A
SA
1
A
12
3
Q4A
E
C
B
A
Ring
Tip
CODEC
IC6
R[0]
T[0]
AG
+5V
DG
DG
DG
DG
DG
+5V
+5V
+5V
+5V
+5V
SFG
R
20A
PC5A
1
2
3
4
R
17A
D2A
R3
A
T1A
2
1
3
4
C1
A
C2
A
C4
A
C8A
D1A
D4
A
R21A
R
11A
R
14A
R15A
R16A
R
18A
R
19A
R1
A
R22A
R2
A
R4A
R5
A
R6
A
J1A
RL
2
A
4
3
2
1
J4A
PC1A
1
23
4
PC2A
1
2
3
4
PC
4
A
1
2
3
4
L1A
1
2
3
4
C3
A
CN3 2
CN3 3
J7
A
C6
A
C7A
Q5A
E
C
B
ZN
R
2
A
CN2
1
26
D3A
1
2
3
4
TH1A
ZN
R
1
A
RL3A
4
3
2
1
D5
A
SA
1
A
12
3
Q4A
E
C
B
A
Ring
Tip
CODEC
IC6
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