Aiwa XP-ZR850, Service Manual

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20
XP-ZR850
Pin No. Pin Name I/O Description
1 PE6/SI1 I Serial data input from the liquid crystal display
2 PE5/SO1 O Serial data output to the liquid crystal display
3 PE4/XSCK1 O Serial clock signal output to the liquid crystal display
4 PE3 O Chip select signal output to the EEPROM
5 VDIO0 — Power supply terminal (+2.1V)
6 VSS0 — Ground terminal
7 DVDD7 — Power supply terminal (+1.3V)
8 PE2/DTCK I/O Not used
9 PE1/RXD0 I Not used
10 PE0/TXD0 O Not used
11 EVA — Not used
12, 13 SDDQ16, SDDQ15 I/O Two-way data bus with the SD-RAM
14 TAPTDO — Not used
15, 16 SDDQ14, SDDQ13 I/O Two-way data bus with the SD-RAM
17 SCANEN — Not used
18, 19 SDDQ12, SDDQ11 I/O Two-way data bus with the SD-RAM
20 TEST2 — Not used
21, 22 SDDQ10, SDDQ8 I/O Two-way data bus with the SD-RAM
23 VDIOSD0 — Power supply terminal (+2.7V)
24 VSS1 — Ground terminal
25 to 28
SDDQ9, SDDQ6,
I/O Two-way data bus with the SD-RAM
SDDQ7, SDDQ2
29 TEST3 — Not used
30, 31 SDDQ4, SDDQ3 I/O Two-way data bus with the SD-RAM
32 TEST0 — Not used
33 XSDWE O Write enable signal output to the SD-RAM
34 SDDQ1 I/O Two-way data bus with the SD-RAM
35 TEST1 — Not used
36 SDDQ5 I/O Two-way data bus with the SD-RAM
37 SDLDQM O Lower byte input/output mask signal output to the SD-RAM
38 VDIOSD1 — Power supply terminal (+2.7V)
39 VSS2 — Ground terminal
40 SDUDQM O Upper byte input/output mask signal output to the SD-RAM
41 XSDCAS O Column address strobe signal output to the SD-RAM
42 XSDCS O Chip select signal output to the SD-RAM
43 TEST5 — Not used
44 XSDRAS O Row address strobe signal output to the SD-RAM
45 SDCKE O Clock enable signal output to the SD-RAM
46 TEST6 — Not used
47 SDCLK O Clock signal output to the SD-RAM
48 SDA13 O Address signal output to the SD-RAM
49 XTRST — Not used
50 to 52 SDA12 to SDA10 O Address signal output to the SD-RAM
53 VDIOSD2 — Power supply terminal (+2.7V)
54 VSS3 — Ground terminal
55 DVDD0 — Power supply terminal (+1.3V)
56 TMS — Not used
• IC Pin Function Description
EGL BOARD IC603 CXR711260-218H2 (SYSTEM CONTROLLER, DSP, LCD DRIVER)
Ver. 1.3