Aiwa XD-DV170, Service Manual

Page: 34 / 53

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Pin No. Pin Name I/O Description
1
2 ~ 5
6
7 ~ 10
11
12 ~ 19
20
21
22, 23
24
25
26
27
28
29
30
31, 32
33
34 ~ 39
40
41
42
43 ~ 45
46
47 ~ 54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
VSS
SBD_7 ~ 4
VDD
SBD_3 ~ 0
VSS
CH_DATA_0 ~ 7
VSS
____
TOS
NC
_______
ERROR
VDD
_______
AVALID
________
VVALID
DCK
_____
VREQ
_____
AREQ
NC
VSS
A_8 ~ 3
VDD
NC
VDD
A_2 ~ 0
VSS
D_7 ~ 0
VSS
SYSCLK
______
RESET
______
DREQ
_____
INTR
BUSMODE
VDD
____
RDY
______
READ
______
WRITE
_____
WAIT/WTN
VSS
NC
___
CS
VS
HS
I
I/O
I
I/O
I
I
I
I
I
I
I
I
I
I
O
O
—
I
I
I
—
I
I
I
I/O
I
I
I
O
O
I
I
O
I
I
I/O
I
—
I
I
I
Ground.
SDRAM data bus 7 ~ 4.
Power (3.3V).
SDRAM data bus 3 ~ 0.
Ground.
Channel data bus 0 ~ 7.
Ground.
Top of sector.
Not connected.
Error.
Power (3.3V).
Audio data valid.
Video data valid.
Data clock.
Video transfer request.
Audio transfer request.
Not connected.
Ground.
Address 8 ~ 3.
Power (3.3V).
Not connected.
Power (3.3V).
Address 2 ~ 0.
Ground.
Host data bus 7 ~ 0.
Ground.
System clock.
Reset.
DMA transfer request.
Interrupt.
Busmode.
Power (3.3V).
Ready.
Read indicator.
Write indicator.
Wait.
Ground.
Not connected.
Chip select.
Vertical synchronization.
Horizontal synchronization.
IC DESCRIPTION -2/8 (L64021D) -1/3