F81867 Datasheet, PDF (32/315 Pages) Feature Integration Technology Inc. – 6 UARTs μSuper IO With 128 Bytes FIFO and Power Saving Functions

F81867
ECP Test FIFO ⎯ Base + 400h
Bit
Name
R/W Default
Description
Data may be read, written from system to the FIFO in any Direction. But no
hardware handshake occurred on the parallel port lines. It could be used to test
7-0
T_FIFO
R/W 00h _{the empty, full and threshold of the FIFO.}
It is only valid in ECP and the ECP_MODE is 110b.
ECP Configuration Register A ⎯ Base + 400h
Bit
Name
R/W Default
Description
0: interrupt is ISA pulse.
7
IRQ_MODE
R
0 1: interrupt is ISA level.
Only valid in ECP and ECP_MODE is 111b.
6-4
IMPID
000: the design is 16-bit implementation.
001: the design is 8-bit implementation (default).
R 001 010: the design is 32-bit implementation.
011-111: Reserved.
Only valid in ECP and ECP_MODE is 111b.
3
Reserved
-
- Reserved.
0: when transmitting there is 1 byte waiting in the transceiver that does not
affect the FIFO full condition.
2
BYTETRAN_N
R
1 _{1: when transmitting the state of the full bit includes the byte being transmitted.}
Only valid in ECP and ECP_MODE is 111b.
1-0
Reserved
Return 00 when read.
R 00
Only valid in ECP and ECP_MODE is 111b.
ECP Configuration Register B ⎯ Base + 401h
Bit
Name
R/W Default
Description
0: only send uncompressed data.
7
COMP
R
0 1: compress data before sending.
Only valid in ECP and ECP_MODE is 111b.
Reserved. Return 1 when read.
6
Reserved
R
1
Only valid in ECP and ECP_MODE is 111b.
5-3 ECP_IRQ_CH
000: the interrupt selected with jumper.
001: select IRQ 7 (default).
010: select IRQ 9.
011: select IRQ 10.
R 001 100: select IRQ 11
101: select IRQ 14.
110: select IRQ 15.
111: select IRQ 5.
Only valid in ECP and ECP_MODE is 111b.
2-0 ECP_DMA_CH
Return the DMA channel of ECP parallel port.
R 011
Only valid in ECP and ECP_MODE is 111b.
32
Dec, 2011
V0.12P