Sony SCD-XA9000ES - Es Super Audio Cd Player, Service Manual

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91
SCD-XA9000ES
•
LINK BOARD IC1903 M30626FHPFP-SCD-XA9000 (I-LINK SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 to 7 HD6 to HD0 I/O Two-way data bus with the i-link DSP
8 BYTE
I
External data bus line byte selection signal input terminal
“L”: 16 bit, “H”: 8 bit Fixed at “L” in this set
9 CNVSS
— Processor mode selection signal input terminal “L”: single Fixed at “L” in this set
10, 11 NC O Not used
12 RESET I
Reset signal input from the CPU “L”: reset
13 XOUT O
System clock output terminal (10 MHz)
14 VSS — Ground terminal
15 XIN I
System clock input terminal (10 MHz)
16 VCC —
Power supply terminal (+3.3V)
17 NMI I Non-maskable interrupt input terminal Not used
18 NC O
Not used
19 AKE_XF I
External flag signal input from the i-link DSP
20 NC O Not used
21 HRDY I
Ready signal input from the i-link DSP
22 XHAS O
Address strobe signal output to the i-link DSP
23, 24 XHDS1, XHDS2 O Data strobe signal output to the i-link DSP
25 XHCS O
Chip select signal output to the i-link DSP
26 XRS O
Reset signal output to the i-link DSP “L”: reset
27, 28 NC O Not used
29 IIC CLK I/O
Clock signal bus with the CPU and EEPROM
30 IIC DATA I/O
Two-way data bus with the CPU and EEPROM
31 TXD1 I Not used
32 RXD1 I
Not used
33 CLK1 I
Not used
34 RTS1 I Not used
35 to 38 NC O
Not used
39 RDY I
Ready signal input from the i-link interface
40 ALE O Not used
41 HOLD I
Not used
42 HLDA O
Not used
43 BCLK O
Not used
44 RD O
Read data output to the i-link interface and EEPROM
45 WRH O
Not used
46 WR O
Write data output to the i-link interface and EEPROM
47 NC O
Not used
48 EEP_CS O
Chip select signal output to the EEPROM
49 CS1 O
Chip select signal output to the i-link interface
50 NC O
Not used
51, 52 HCNTL0, HCNTL1 O
Control signal output to the i-link DSP
53 HBIL O
Byte identification signal output to the i-link DSP
54 HRW O Read/write signal output to the i-link DSP
55, 56 NC O
Not used
57 to 61 A13 to A9 O
Address signal output to the EEPROM
62 VCC — Power supply terminal (+3.3V)
63 A8 O
Address signal output to the i-link interface and EEPROM