FDC37B80X SMSC [SMSC Corporation], FDC37B80X Datasheet - Page 146
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FDC37B80X
Manufacturer Part Number
FDC37B80X
Description
PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.FDC37B80X.pdf
(194 pages)
- Current page: 146 of 194
- Download datasheet (801Kb)
PP Mode Register
Default = 0x3C
on Vcc POR or
Reset_Drv
PP Mode Register 2
Default = 0x00
on Vcc POR or
Reset_Drv
NAME
Table 60 - Parallel Port, Logical Device 3 [Logical Device Number = 0x03]
REG INDEX
0xF0 R/W
0xF1 R/W
Bits[2:0] Parallel Port Mode
= 100
= 000
= 001
= 101
= 010
= 011
= 111
Bit[6:3] ECP FIFO Threshold
0111b (default)
Bit[7] PP Interupt Type
Not valid when the parallel port is in the Printer
Mode (100) or the Standard & Bi-directional Mode
(000).
= 1
= 0
IRQ level type when the parallel port is in ECP,
TEST, or Centronics FIFO Mode.
Bits[1:0] PPFDC - muxed PP/FDC control
= 00 Normal Parallel Port Mode
= 01 PPFD1:
= 10 PPFD2:
Bits[7:2] Reserved. Set to zero.
Printer Mode (default)
Standard and Bi-directional (SPP) Mode
EPP-1.9 and SPP Mode
EPP-1.7 and SPP Mode
ECP Mode
ECP and EPP-1.9 Mode
ECP and EPP-1.7 Mode
Pulsed Low, released to high-Z.
IRQ follows nACK when parallel port in EPP
Mode or [Printer,SPP, EPP] under ECP.
Drive 1 is on the Parallel port pins
Drive 1 is on the Parallel port pins
146
Drive 0 is on the FDC pins
Drive 0 is on the Parallel port pins
DEFINITION
STATE
C
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