Sony ICD-BM1A - Memory Stick Media Digital Voice Recorder, Service Manual

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ICD-BM1/BM1A/BM1AVTP/BM1B/BM1DR9
• IC Pin Descriptions
IC601
µ PD77213F1-101-DA2 (DSP) (MAIN BOARD)
Pin No. Pin Name I/O Pin Description
1 to 3 NC — Not used
4 EVDD — I/O power supply (3.0 V)
5 XADACS O AD/DA chip select
6 ADACCLK I/O AD/DA clock
7 ADACDTI I AD/DA data input
8 ADACDTO O AD/DA data output
9 MICPWR O Microphone power supply control
10 GND — GND
11 XFMWP O Boot flash ROM write protect
12 XFMCS O Boot flash ROM chip select
13 MICSENSE O Microphone sensitivity select (H: Conference, L: Dictation)
14 GND — GND
15 NC — Not used
16 EVDD — I/O power supply (3.0 V)
17 HD1 I/O Host data bus (Not used)
18 HD2 I/O Host data bus (Not used)
19 HD0 I/O Host data bus (Not used)
20 HD3 I/O Host data bus (Not used)
21 HD5 I/O Host data bus (Not used)
22 HD4 I/O Host data bus (Not used)
23 GND — GND
24 IVDD — Core power supply (1.5 V)
25 HD7 I/O Host data bus (Not used)
26 HD6 I/O Host data bus (Not used)
27 GND — GND
28 EVDD — I/O power supply (3.0 V)
29 XHCS I Host chip select (Pull-up)
30 HA1 I Host data access 1 (Pull-down)
31 XHWR I Host write (Pull-up)
32 HA0 I Host data access 0 (Pull-down)
33 XHRD I Host read (Pull-up)
34 TIMOUT O Not used
35 SO O Serial data output
36 XHWE O Host write enable (Not used)
37 XHRE O Host read enable (Not used)
38 GND — GND
39 EVDD — I/O power supply (3.0 V)
40 BCLK I/O Bit clock
41 to 44 NC — Not used
45 ADASI I ADA serial data input
46 MCLK I Master clock
47 LRCLK I/O Clock for L-ch and R-ch (H: L-ch, L: R-ch)
48 TSO O Time sharing serial data output
49 TSCK I Time sharing serial clock input
50 TSOEN I Time sharing serial input enable
51 GND — GND
52 TSI I Time sharing serial data input
53 TSIAK I Time sharing serial input response (Not used)
54 TSORQ O Time sharing serial output request (Not used)