Sony CDX-C8850R Service Manual page 64

IC801 RSC-164
48
BUFFER
DAC
ADC
SH 49
AIN1 50
ADC
AIN0 51 MUX
AGND 52
53
BUFOUT/PWM0
TEST/PWM1 54
AVDD 55
GND 56
D7 57
D6
58
D5 59
D4
60
D3
61
D2 62
D1
63
D0 64
64
47 46 45 44 43
INTERNAL ROM
32 X 8 (HIGH)
INTERNAL ROM
32 X 8 (LOW)
ANALOG
CONTROL
EXTERNAL MEMORY
INTERFACE
1 2 3 4 5 6 7 8 9 10 11 12
IC803 MSM534001E-49TSKFDR3 (TYPE A)
IC803 MSM534001E-50TSKFDR3 (TYPE B)
IC803 MSM534001E-51TSKFDR3 (TYPE C)
32 31 30 29 28 27 26
DECODER
ADDRESS
BUFFER
DECODER
CONTROL
1 2 3 4 5 6 7
42 41 40 39 38 37 36 35 34 33
PORT 0
REGISTER
STACK
SPACE
SPACE
INTERNAL BUS
INTERRUPT PULSE WIDTH
LOGIC MODULATOR
POWER
TIMING &
TIMER
CONTROL CONTROL
WAKEUP LOGIC
(FROM PORT 0/1)
ADDRESS BUS
13 14 15 16
25 24 23 22 21 20 19 18 17
MEMORY CELL
X
MATRIX
524,288 X 8
Y
MULTIPLEXER
CE/OE OUTPUT
BUFFER
8 9 10 11 12 13 14 15 16
CPU 32 P07
31 P10
P11
30
29 P12
28 P13
27 P14
26 P15
25 P16
24 P17
VDD
23
22 GND
21 RESET
OSC 20 XI1
19 XO1
18 A0
17 A1