Description Of Major Ics - JVC KD-SX8250 Service Manual

KD-SX8250/KD-SX780
QQ
3 7 63 1515 0

Description of major ICs

UPD784215AGC143(IC701):MAIN CPU
1.Pin layout
76
100
2.Block diagram
INTP2/NMI
INTP0,INTP1
INTP3-INTP6
TI00
TI01
TO0
TI1
TO1
TI2
TO2
TE
L 13942296513
TI5/TO5
TI6/TO6
TI7/TO7
TI8/TO8
RTP0-RTP7
ANO0
ANO1
AV R
EF1
AV
SS
ANI0-ANI7
AV R
EF0
AV
DD
www
AV
SS
PCL
BUZ
1-22
http://www.xiaoyu163.com
75 51
50
26
1 25
PROGRAMMABEL
INTERRUPT
CONTROLLER
TIMER/COUNTER
(16 BITS)
TIMER/COUNTER1
(8 BITS)
TIMER/COUNTER2
(8 BITS)
TIMER/COUNTER5
(8 BITS)
TIMER/COUNTER6
(8 BITS)
TIMER/COUNTER7
(8 BITS)
TIMER/COUNTER8
(8 BITS)
WATCH TIMER
WATCHDOG
TIMER
REAL-TIME
OUTPUT PORT
D/A
CONVERTER
A/D
CONVERTER
CLOCK OUTPUT
x ao
y
CONTROL
. i
BUZZER OUTPUT
http://www.xiaoyu163.com
8
UART/IOE1
BAUD-RATE
GENERATOR
UART/IOE2
BAUD-RATE
GENERATOR
CLOCKED
SERIAL
INTERFACE
Q Q
3 6 7 1 3
78K/IV
ROM
CPU CORE
RAM
u163
CONTROL
.
2 9 9 4
RxD1/SI1
TxD1/SO1
ASCK1/SCK1
RxD2/SI2
TxD2/SO2
ASCK2/SCK2
SI0
SO0
SCK0
AD0-AD7
A0-A7
1 5 0 5 8 2 9
A8-A15
BUS I/F
A16-A19
RD
WR
WAIT
ASTB
PORT 0
P00-P06
PORT 1
P10-P17
PORT 2 P20-P27
PORT 3
P30-P37
PORT 4 P40-P47
PORT 5 P50-P57
PORT 6 P60-P67
P70-P72
PORT 7
PORT 8 P80-P87
P90-P95
PORT 9
PORT 10 P100-P103
PORT 12
P120-P127
PORT 13
P130,P131
RESET
m
X1
SYSTEM
co
X2
XT1
XT2
V
DD
V
SS
TEST
2 8
9 9
9 4 2 8 9 9