Sony SDP-EP9ES, Руководство по обслуживанию

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• IC424 Digital Signal Processor (DSP56009)
Function
Address buffer ground
Chip select 0 output to S-RAM (Not used)
Chip select 3 output to S-RAM (Not used)
Address data output to S-RAM (Not used)
Address bus buffer power supply (+5V)
Address data output to S-RAM(Not used)
Ground for address bus buffer
Power supply for internal logic (+5V)
Ground for internal logic
AGND
MCS0
MCS3
MA14
MA13
AVCC
MA12
AGND
QVCC
QGND
MA11
MA10
MA9
MA8
AGND
MA7
AVCC
MA6
MA5
MA4
AGND
MA3
MA2
MA1
MA0
SCK
EXTAL
QVCC
QGND
PINIT
PGND
PCAP
PVCC
SGND
MISO
RESET
MODA
MODB
MODC
SVCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
–
O
O
O
O
–
O
–
–
–
O
O
O
O
–
O
–
O
O
O
–
O
O
O
O
I
I
–
–
I
–
I
–
–
I
I
I
I
I
–
Function Pin No. Pin Name I/O
Address data output to S-RAM (Not used)
Ground for address bus buffer
Address data output to S-RAM (Not used)
Power supply for address bus buffer (+5V)
Address data output to S-RAM (Not used)
Ground for address bus buffer
SPI serial clock signal input from system controller
External frequency input (3 MHz)
Power supply for internal logic (+5V)
Ground for internal logic
PLL initialize input (Fixed at “L”)
Ground for PLL
PLL filter input (Connected to 0.01 µF capacitor)
Power supply for PLL (+5V)
Ground for serial port
Master data signal input from system controller
Reset signal input from system controller
Mode select A (Fixed at “H”)
Mode select B (Fixed at “L”)
Mode select C (Fixed at “H”)
Power supply for serial port (+5V)
Address data output to S-RAM (Not used)