Table 30 - FDC Parallel Port Pins
CONNECTOR
PIN #
CHIP PIN #
SPP MODE
PIN
FDC MODE
PIN
DIRECTION
DIRECTION
1
2
77
71
70
69
68
66
65
64
63
62
61
60
59
76
75
74
73
nSTB
PD0
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
(nDS0)
nINDEX
nTRKO
I/(0)
I
I
3
PD1
4
PD2
nWP
I
5
PD3
nRDATA
nDSKCHG
nMEDIA_ID0
(nMTR0)
nMEDIA_ID1
nDS1
I
6
PD4
I
7
PD5
I
8
PD6
I/(0)
I
9
PD7
10
11
12
13
14
15
16
17
nACK
BUSY
PE
0
0
0
0
0
0
0
0
I
nMTR1
I
nWDATA
nWGATE
nDENSEL
nHDSEL
nDIR
SLCT
nAFD
nERR
nINIT
nSLIN
I
I/O
I
I/O
I/O
nSTEP
These pins are outputs in mode PPFD2. Inputs in mode PPFD1
71