Ic901 Digital Signal Processor (Ac-3 Rf Demodulator) (Pd4606A) - Sony SDP-EP9ES Service Manual

• IC901 Digital Signal Processor (AC-3 RF Demodulator) (PD4606A)

Pin No. Pin Name
GND
1
2 VDD
XOUT
3
4 XIN
TM0
5
6 TM1
TM2
7
8 RESET
DATA
9
10 MCK
MLTB
11
12 TM3
TM4
13
TLDB
14
15 TCK
16 TDO
TRP
17
TM5
18
TSTIN1
19
TSTIN2
20
A0
21
22 A1
A2
23
24 A3
VDD
25
26 A4
A5
27
28 GND
VDD
29
30 A6
A7
31
GND
32
A12
33
A14
34
WE
35
I/O
– Ground
– Power supply (+5V)
O Crystal oscillation circuit output (Not used)
I Crystal oscillation circuit input (46.08 MHz)
I
I
For IC test mode setting (Fixed at "L")
I
I
System reset. Reset at "L". Set to " L" when power is turned ON
I Serial data input from CPU (LSB first) (Fixed at "H")
CPU serial input clock
I
Latches data at rising edge of clock (Fixed at "H")
CPU input latch
I
Latches serial data (8 bits) from CPU at register (Fixed at "H")
I
For IC test mode setting (Fixed at "L")
I
Tag code load signal
I
Tag code is loaded in 16-bit shift register at "L" (Fixed at "H")
Tag code output clock
I
Data is output at rising edge of clock (Fixed at "H")
O Tag code serial data signal. (MSB first) (Not used)
Tag code renewal signal. "H" when no error in tag code when error correction operation of
O
one block ends (Not used)
I
For IC test mode setting (Fixed at "L")
I
For testing IC (Fixed at "L")
I
O Address output to external RAM. Address 0 (LSB)
O
Address output to external RAM. Address 1
O Address output to external RAM. Address 2
O
Address output to external RAM. Address 3
– Power supply (+5V)
O
Address output to external RAM. Address 4
O Address output to external RAM. Address 5
–
Ground
– Power supply (+5V)
O
Address output to external RAM. Address 6
O Address output to external RAM. Address 7
–
Ground
O Address output to external RAM. Address 12
O
Address output to external RAM. Address 14 (MSB)
O Write enable signal to external RAM. Active at "L"
— 59 —
Function Function