LPC47M192-NW Standard Microsystems (SMSC), LPC47M192-NW Datasheet - Page 179

• Manufacturer Part Number: LPC47M192-NW
• Manufacturer: Standard Microsystems (SMSC)

Specifications of LPC47M192-NW

• Lead Free Status / RoHS Status: Compliant

SMSC DS – LPC47M192
FDD Type Register
Default = 0xFF
on VCC POR,
VTR POR and
PCI RESET
FDD0
Default = 0x00
on VCC POR,
VTR POR and
PCI RESET
FDD1
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
Table 71 - Parallel Port, Logical Device 3 [Logical Device Number = 0x03]
NAME
NAME
REG INDEX
REG INDEX
0xF2 R/W
0xF4 R/W
0xF5 R/W
0xF0 R/W
0xF1 R/W
0xF3 R
DATASHEET
Bits[1:0] Floppy Drive A Type
Bits[3:2] Floppy Drive B Type
Bits[5:4] Reserved (could be used to store Floppy
Drive C type)
Bits[7:6] Reserved (could be used to store Floppy
Drive D type)
Note : The LPC47M192 supports two floppy drives
Reserved, Read as 0 (read only)
Bits[1:0] Drive Type Select: DT1, DT0
Bits[2]
Bits[4:3] Data Rate Table Select: DRT1, DRT0
Bits[5]
Bits[6]
Bits[7]
Refer to definition and default for 0xF4
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 Pulsed Low, released to high-Z.
= 0 IRQ follows nACK when parallel port in EPP Mode
or [Printer,SPP, EPP] under ECP.
IRQ level type when the parallel port is in ECP, TEST,
or Centronics FIFO Mode.
Bits[3:0] Reserved. Set to zero
Bit [4] TIMEOUT_SELECT
= 0 TMOUT (EPP Status Reg.) cleared on write of ‘1’
to TMOUT.
= 1 TMOUT cleared on trailing edge of read of EPP
Status Reg.
Bits[7:5] Reserved. Set to zero.
=0 Use Precompensation
=1 No Precompensation
Page 179
Read as 0 (read only)
Read as 0 (read only)
Precompensation Disable PTS
Read as 0 (read only)
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
DEFINITION
DEFINITION
Rev. 03/30/05