Sony ICD-MS525 Service Manual page 25

• IC Pin Function Descriptions
IC6201 uPD77213F1-S2-DA2 (DSP) (AUDIO BOARD)
Pin No. Pin Name I/O
1 to 3 NC —
4 EVDD —
5 XADACS O
6 ADACCLK I/O
7 ADACDTI
8 ADACDTO O
9 MICPWR O
10 GND —
11 XFMWP O
12 XFMCS O
13 MICSENSE O
14 GND —
15 NC —
16 EVDD —
17 HD1 I/O
18 HD2 I/O
19 HD0 I/O
20 HD3 I/O
21 HD5 I/O
22 HD4 I/O
23 GND —
24 IVDD —
25 HD7 I/O
26 HD6 I/O
27 GND —
28 EVDD —
29 XHCS
30 HA1
31 XHWR
32 HA0
33 XHRD
34 TIMOUT O
35 SO O
36 XHWE O
37 XHRE O
38 GND —
39 EVDD —
40 BCLK I/O
41 to 44 NC —
45 ADASI
46 MCLK
47 LRCLK I/O
48 TSO O
49 TSCK
50 TSOEN
51 GND —
52 TSI
53 TSIAK
54 TSORQ O
55 TSIEN
Not used
I/O power supply (3.0 V)
AD/DA chip select
AD/DA clock
I AD/DA data input
AD/DA data output
Microphone power supply control
Ground
Boot flash ROM write protect
Boot flash ROM chip select
Micropone sensitivity select (H: Conference, L: Dictation)
Ground
Not used
I/O power supply (3.0 V)
Host data bus (Not used)
Host data bus (Not used)
Host data bus (Not used)
Host data bus (Not used)
Host data bus (Not used)
Host data bus (Not used)
Ground
Core power supply (1.5 V)
Host data bus (Not used)
Host data bus (Not used)
Ground
I/O power supply (3.0 V)
I Host chip select (Pull-up)
I Host data access 1 (Pull-down)
I Host write (Pull-up)
I Host data access 0 (Pull-down)
I Host read (Pull-up)
Not used
Serial data output
Host write enable (Not used)
Host read enable (Not used)
Ground
I/O power supply (3.0 V)
Bit clock
Not used
I ADA serial data input
I Master clock
Clock for L-ch and R-ch (H: L-ch, L: R-ch)
Time sharing serial data output
I Time sharing serial clock input
I Time sharing serial output enable
Ground
I Time sharing serial data input
I Time sharing serial input response (Not used)
Time sharing serial output request (Note used)
I Time sharing serial input enable
Description
ICD-MS525
25