PC87393VJG National Semiconductor, PC87393VJG Datasheet - Page 17

• Manufacturer Part Number: PC87393VJG
• Description: IC, SUPER I/O DEVICE, TQFP-100
• Manufacturer: National Semiconductor

Specifications of PC87393VJG

• Data Rate: 2Mbps
• Supply Voltage Range: 3V to 3.6V
• Logic Case Style: TQFP
• No. Of Pins: 100
• Operating Temperature Range: 0°C to +70°C
• Termination Type: SMD
• Transceiver Type: Interface
• Rohs Compliant: No

1.0 Signal/Pin Connection and Description
1.4 PARALLEL PORT MULTIPLEXER (PPM)
The Floppy Disk Controller (FDC) signals in Table 3 are directed to the associated Parallel Port (PP) pins either when the
PNF signal is low and bits 6-5 of the SuperI/O Configuration 5 register (SIOCF5) are set to 01, or when the PNF signal is
high and bits 6-5 are set to 10.
Table 3. FDC Signals on Parallel Port Pins
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
SLIN_ASTRB
AFD_DSTRB
INIT
ACK
ERR
SLCT
PE
BUSY_WAIT
Parallel Port Pin
17
INDEX
TRK0
WP
RDATA
DSKCHG
MSEN0
DRATE0
MSEN1
STEP
DENSEL/DRATE1
DIR
DR1
HDSEL
WGATE
WDATA
MTR1
(Continued)
FDC Signal
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