ICD-ST25VTP - Sony Audio Service Manual (repair manual). Page 29

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29
ICD-ST25VTP
•  IC Pin Function Description
MAIN BOARD  IC6001  uPD77213F1-101-DA2 (DSP)
Pin No.
Pin Name
I/O
Description
1 to 3
NC
Not used
4
EVDD
I/O power supply (3.1V)
5
XADACS
O
AD/DA chip select  (Not used) (fixed at “L”)
6
ADACCLK
I/O
AD/DA clock  (Not used) (fixed at “L”)
7
ADACDTI
I
AD/DA data input  (Not used)  (fixed at “L”)
8
ADACDTO
O
AD/DA data output  (Not used)  (fixed at “L”)
9
MICPWR
O
Microphone power supply control  (Not used) (fixed at “L”)
10
GND
Ground terminal
11
XFMWP
O
Boot flash ROM write protect
12
XFMCS
O
Boot flash ROM chip select
13
MICSENSE
O
Micropone sensitivity select (H: Conference, L: Dictation)  (Not used) (fixed at “L”)
14
GND
Ground terminal
15
NC
Not used
16
EVDD
I/O power supply (3.1 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
Ground terminal
24
IVDD
Core power supply (1.6 V)
25
HD7
I/O
Host data bus  (Not used)
26
HD6
I/O
Host data bus  (Not used)
27
GND
Ground terminal
28
EVDD
I/O power supply (3.1 V)
29
XHCS
I
Host chip select (Pull-up) (fixed at “H”)
30
HA1
I
Host data access 1 (Pull-down) (fixed at “L”)
31
XHWR
I
Host write (Pull-up) (fixed at “H”)
32
HA0
I
Host data access 0 (Pull-down) (fixed at “L”)
33
XHRD
I
Host read (Pull-up) (fixed at “H”)
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
Ground terminal
39
EVDD
I/O power supply (3.1 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 output enable
51
GND
Ground terminal
52
TSI
I
Time sharing serial data input
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