Sony MEX 1GP - Giga Panel Radio, Руководство по обслуживанию

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40
MEX-1GP
• IC902 PL-2518ALQ64 (USB I/F) (KEY BOARD (2/2))
Pin No. Pin Name I/O Pin Description
1 SM_RB I SDRAM ready/busy signal input
2 SM_ALE O SDRAM address latch enable signal output
3 SUSPEND O Suspend indicator output (Not used (Open))
4 SM_CEL O SDRAM command latch enable signal output
5 SM_WEB O SDRAM write enable signal output
6 SM_REB O SDRAM read enable signal output
7 SM_CEB7 — Not used (Open)
8 SM_CEB6 — Not used (Open)
9 SM_CEB5 — Not used (Open)
10 SM_CEB4 — Not used (Open)
11 VCC3 — Power supply (+3.3V)
12 SM_CEB3 — Not used (Open)
13 SM_CEB2 — Not used (Open)
14 SM_CEB1 — Not used (Open)
15 SM_CEB0 O SDRAM chip enable signal output
16 DIO11 I/O SDRAM data 11 input/output (Not used (Open))
17 DIO0 I/O SDRAM data 0 input/output
18 GND — Ground
19 LED O Data access light signal output
20 DIO1 I/O SDRAM data 1 input/output
21 DIO12 I/O SDRAM data 12 input/output (Not used (Open))
22 DIO2 I/O SDRAM data 2 input/output
23 DIO13 I/O SDRAM data 13 input/output (Not used (Open))
24 DIO3 I/O SDRAM data 3 input/output
25 VCC25 — Power supply (+2.5V)
26 WPB O SDRAM write protect signal output
27 DIO4 I/O SDRAM data 4 input/output
28 DIO14 I/O SDRAM data 14 input/output (Not used (Open))
29 DIO5 I/O SDRAM data 5 input/output
30 DIO15 I/O SDRAM data 15 input/output (Not used (Open))
31 DIO6 I/O SDRAM data 6 input/output
32 VCC3 — Power supply (+3.3V)
33 WPBIN I Connected resister to VCC
34 DIO7 I/O SDRAM data 7 input/output
35 GND — Ground
36 NC — Not used (Open)
37 NC — Not used (Open)
38 RESETJ I Optional external power on reset signal input
39 TEST — Not used (Open)
40 VCC25 — Power supply (+2.5V)
41 GND — Ground
42 XSCI I Crystal oscillation input (12 MHz)
43 XSCO O Crystal oscillation output (12 MHz)
44 AVCC3 — Power supply (+3.3V)
45 AGND — Ground
46 RREF I Connected external reference resister to ground
47 DM I/O High speed D+ signal input/output
48 DP I/O High speed D- signal input/output
49 AGND — Ground