Table 46 - FDC Parallel Port Pins
CHIP PIN # SPP MODE PIN DIRECTION FDC MODE PIN DIRECTION
CONNECTOR
PIN #
1
144
138
137
136
135
134
133
132
131
129
128
127
126
143
142
141
140
nSTB
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I
(nDS0)
nINDEX
nTRK0
I/(O) Note1
2
3
PD0
I
PD1
I
4
PD2
nWP
I
5
PD3
nRDATA
nDSKCHG
nMEDIA_ID0
(nMTR0)
MEDIA_ID1
nDS1
I
6
PD4
I
7
PD5
I
8
PD6
I/(O) Note1
9
PD7
I
10
11
12
13
14
15
16
17
nACK
BUSY
PE
O
O
O
O
O
O
O
O
I
nMTR1
I
nWDATA
nWGATE
DRVDEN0
nHDSEL
nDIR
SLCT
nALF
nERROR
nINIT
nSLCTIN
I
I/O
I
I/O
I/O
nSTEP
Note 1: These pins are outputs in mode PPFD2, inputs in mode PPFD1.
110