F71872
7-5 ECP_MODE
R/W
000 000: SPP Mode.
001: PS/2 Parallel Port Mode.
010: Parallel Port Data FIFO Mode.
011: ECP Parallel Port Mode.
100: EPP Mode.
101: Reserved.
110: Test Mode.
111: Configuration Mode.
Only valid in ECP.
4
3
2
ERRINTR_EN
DAMEN
R/W
R/W
R/W
0
0
1
0: disable the interrupt generated on the falling edge of ERR#.
1: enable the interrupt generated on the falling edge of ERR#.
0: disable DMA.
1: enable DMA. DMA starts when SERVICEINTR is 0.
SERVICEINTR
0: enable the following case of interrupt.
DMAEN = 1: DMA mode.
DMAEN = 0, DIR = 0: set to 1 whenever there are writeIntrThreshold or more
bytes are free in the FIFO.
DMAEN = 0, DIR = 0: set to 1 whenever there are readIntrThreshold or more
bytes are valid to be read in the FIFO.
1
0
FIFOFULL
R
R
0
0
0: The FIFO has at least 1 free byte.
1: The FIFO is completely full.
FIFOEMPTY
0: The FIFO contains at least 1 byte.
1: The FIFO is completely empty.
7.6 Hardware Monitor Registers
7.6.1 Logic Device Number Register
Logic Device Number Register Index 07H
Bit
Name
R/W Default
Description
67
July, 2007
V0.28P