PC87332VLJ-5 NSC [National Semiconductor], PC87332VLJ-5 Datasheet - Page 75

• Manufacturer Part Number: PC87332VLJ-5
• Description: PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
• Manufacturer: NSC [National Semiconductor]

7 0 Parallel Port
3 Multiplexing parallel port signals with FDC signals on the
Connector
Pin No
PPM pins
When the PPM is not enabled (bit 2 of FCR is 0) the
parallel port signals are connected to the PPM pins
When bit 2 of FCR is 1 and PNF
signals are connected to the PPM pins
When bit 2 of FCR is 1 and PNF
signals are connected to the PPM pins
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
Pin No
Chip
95
94
93
92
91
89
88
87
86
85
84
83
82
78
79
80
81
(Continued)
SPP ECP
BUSY
Mode
SLCT
SLIN
ERR
STB
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
ACK
AFD
INIT
PE
e
e
1 the parallel port
0 the FDC output
TABLE 7-6 Parallel Port Pin Out
Direction
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
Pin
I
I
I
I
I
75
EPP Mode
DSTRB
ASTRB
WRITE
SLCT
Table 7-6 shows the standard 25-pin D-type connector defi-
nition for various parallel port operations
WAIT
ACK
ERR
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
INIT
PE
Reading back the DTR or CTR returns their written val-
ues and thus the parallel port module sees ‘‘cable not
connected’’
Input signals assume their default values (STR register)
BUSY
Direction
e
Pin
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
1 PE
I
I
I
I
I
e
0 SLCT
and PNF
PPM Mode
DSKCHG
DENSEL
WGATE
WDATA
RDATA
MSEN0
MSEN1
HDSEL
INDEX
MTR1
TRK0
STEP
DR1
DIR
WP
e
0 ACK
e
0
e
1
Direction
Pin
O
O
O
O
O
O
O
O
I
I
I
I
I
I
I