LPC47S457-NC SMSC [SMSC Corporation], LPC47S457-NC Datasheet - Page 210

• Manufacturer Part Number: LPC47S457-NC
• Description: Advanced I/O with X-Bus Interface
• Manufacturer: SMSC [SMSC Corporation]

SMSC LPC47S45x
PP Mode Register
Default = 0x3C
on VCC POR ,
VTR POR and
PCI RESET
PP Mode Register 2
Default = 0x00
on VCC POR,
VTR POR and
PCI RESET
NAME
Table 88 − Parallel Port, Logical Device 3 [Logical Device Number = 0x03]
REG INDEX
(R/W)
(R/W)
0xF0
0xF1
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.
DATASHEET
Page 210 of 259
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 0 is on the FDC pins
Drive 1 is on the Parallel port pins
Drive 0 is on the Parallel port pins
Drive 1 is on the Parallel port pins
DEFINITION
Rev. 06-01-06
STATE
C