EP80579 Datasheet, PDF (508/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
16.3.1.14 Offset 3Dh: INTRPIN - Interrupt Pin Register
Table 16-126.Offset 3Dh: INTRPIN - Interrupt Pin Register
Description:
View: PCI
BAR: Configuration
Bus:Device:Function: 0:1:0
Offset Start: 3Dh
Offset End: 3Dh
Size: 8 bit
Default: 01h
Power Well: Core
Bit Range Bit Acronym
Bit Description
07 : 00
INTRPIN
Interrupt Pin: Set to 01h to specify that EDMA always
uses INTA# as its interrupt pin.
Sticky
Bit Reset
Value
Bit Access
01h
RO
16.3.1.15 Offset 40h: EDMACTL - EDMA Control Register
This register defines global operation of the EDMA channels.
Table 16-127.Offset 40h: EDMACTL - EDMA Control Register
Description:
View: PCI
BAR: Configuration
Bus:Device:Function: 0:1:0
Offset Start: 40h
Offset End: 40h
Size: 8 bit
Default: 08h
Power Well: Core
Bit Range
07
06 : 04
03
02 : 01
00
Bit Acronym
Bit Description
EDMAEN
Reserved
Reserved
Reserved
PARITYEN
EDMA Engine Enable:
0 = EDMA Engine is disabled.
1 = EDMA Engine is enabled to do transfers.
Whether the bit is set or clear, the registers can be
programmed.
Reserved
This bit MUST be set to 1 by BIOS for proper operation.
Reserved
Disable abort on data parity error:
0 = Controller aborts on data parity error
1 = Controller does not abort on data parity errors, but
logs the event in the appropriate EDMA FERR/NERR
bit
Sticky
Bit Reset
Value
0b
000b
1b
00b
0b
Bit Access
RW
RO
RW
16.3.1.16 Offset 80h: EDMA_FERR - EDMA First Error Register
This register captures the first occurrence of errors on a EDMA channel basis. This
register only designates which channel had an error. Once an error has been captured
for a given channel, this register is locked and needs to be written with ones to clear it.
All DMA errors are considered non-fatal because they cause the DMA engine to stop
further processing, thus avoiding any data corruption. The errors are fatal to the
process, but not to the system.
Intel^® EP80579 Integrated Processor Product Line Datasheet
508
August 2009
Order Number: 320066-003US