Panasonic FZ-1 Service Manual page 29

FZ-1
Continued (IC600)
Pin
1/0
Pin Name Comment
No.
33
1/0,
TTL, BFD1 External bus data 2 1
w/Pull-UD
34 1/0,
TTL,
BFD1 External bus data
2!l
w/Pull-UD
35 In, TTL PDCSO- Slow bus Chip select strobe
36
1/0,
TTL, BFIDIN ID signal return from EX-Bus
w/Pull-UD
37 In, TTL PDWR- Slow bus Write signal
38 In, TTL PDRD- Slow bus Read signal
39 Out, TTL
PDWRO- Write strobe to BT9101
40
Out, TTL
PDRDO- Read strobe to BT9101
41 In, TTL Cl.K25M Clock input 25 MHz
42 Vss
43
1/0,
TTL, CDD0
Data bus for CD drive
~
w/Pull-UD
44
1/0,
TTL, CDD1 Data bus for CD drive 2
1
w/Pull-UD
45
1/0,
TTL, CDD2 Data bus for CD drive
'if
w/Pull-UD
46
1/0,
TTL,
CDD3 Data bus for CD drive 2
3
w/Pull-UD
47
1/0,
TTL,
CDD4 Data bus for CD drive
z4
w/Pull-up
48 1/0,
TTL, CODS Data bus for CD drive 2
5
w/Pull-up
49
1/0,
TTL, CDD6 Data bus for CD drive
' 1 :'
w/Pull-UD
50
1/0,
TTL, CDD7 Data bus for CD drive 2'
w/Pull-UD
51 Out, TTL
COEN- CD drive Enable signal
52 Out, TTL CDHWR- CD drive Write signal
53 Out, TTL CDHRD- CD drive Read signal
54
In, TTL, CDWAIT- CD drive Wait signal
w/Pull-UD
55 In, TTL, CDDTEN- CD drive Data enable signal
w/Pull-UD
56 In, TTL, COSTEN- CD drive Status enable signal
w/Pull-up
57
Vss
58
Vdd
59 Out, TTL
CDCMD- CD drive Command signal
60
In, TTL, CDMDCHG CD drive Media change signal
w/Pull-UD
61 Out, TTL
CDRST- CD drive Reset signal
62
1/0,
TTL, EXD0 Internal expansion data
'P
w/Pull-UD
63
1/0,
TTL, EXD1 Internal expansion data 2 1
w/Pull-UD
64 1/0,
TTL, EXD2 Internal expansion data 2~
w/Pull-UD
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