SA-WSRD15 - Sony Audio Service Manual (repair manual). Page 24

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24
SA-WSRD15
Pin No.
Pin Name
I/O
Description
49
WMD0
I
External memory wait mode setting terminal    Fixed at "H" in this set
50
PAGE2
O
External memory page selection signal output terminal    Not used
51
VSS
-
Ground terminal
52, 53
PAGE1, PAGE0
O
External memory page selection signal output terminal    Not used
54
BOOT
I
Boot mode control signal input terminal    Not used
55
TST1
O
Output terminal for the test    Not used
56
BST
I
Boot strap signal input terminal
57
MOD1
I
Operation mode setting terminal    "L": enhanced mode, "H": normal mode
Fixed at "H" in this set
58
MOD0
I
Operation mode setting terminal    "L": single chip mode, "H": can not use
Fixed at "L" in this set
59
EXLOCK
I
PLL lock error signal and data error flag input from the digital audio interface receiver
60
VDDI
-
Power supply terminal (+1.8V)
61
VSS
-
Ground terminal
62
A17
O
Address signal output terminal    Not used
63, 64
A16, A15
O
Address signal output to the S-RAM
65
A14
O
Address signal output terminal    Not used
66
A13
O
Address signal output to the S-RAM
67
GP10
O
Not used
68
GP9
O
Read ready signal output to the system controller
69
GP8
I
PCM audio data input from the digital audio interface receiver
70
VDDI
-
Power supply terminal (+1.8V)
71
VSS
-
Ground terminal
72 to 75
D15 to
D12
I/O
Two-way data bus with the S-RAM
76
VDDE
-
Power supply terminal (+3.3V)
77 to 80
D11 to
D8
I/O
Two-way data bus with the S-RAM
81
VSS
-
Ground terminal
82 to 85
A9, A12 to A10
O
Address signal output to the S-RAM
86
TDO
O
Simplicity emulation data output terminal    Not used
87
TMS
I
Simplicity emulation data input start and end terminal    Not used
88
XTRST
I
Simplicity emulation non-sync break signal input terminal    Not used
89
TCK
I
Simplicity emulation clock signal input terminal    Not used
90
TDI
I
Simplicity emulation data input terminal    Not used
91
VSS
-
Ground terminal
92 to 97
A8 to A3
O
Address signal output to the S-RAM
98, 99
D7, D6
I/O
Two-way data bus with the S-RAM
100
VDDI
-
Power supply terminal (+1.8V)
101
VSS
-
Ground terminal
102 to 105
D5 to D2
I/O
Two-way data bus with the S-RAM
106
VDDE
-
Power supply terminal (+3.3V)
107, 108
D1, D0
I/O
Two-way data bus with the S-RAM
109, 110
A2, A1
O
Address signal output to the S-RAM
111
VSS
-
Ground terminal
112
A0
O
Address signal output to the S-RAM
113
PM
I
PLL initialize signal input from the system controller
114, 115
SDI3, SDI4
I
Audio serial data input terminal    Not used
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