EP80579 Datasheet, PDF (1092/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 27-37. Write-Only Registers with Read Paths in Alternate Access Mode (Sheet 1 of 2)
Restore Data
Restore Data
I/O # of
Addr Reads
Access
Data
I/O
Addr
# of
Reads
Access
Data
00h
2
1
DMA Chan 0 base
address low byte
2
DMA Chan 0 base
address high byte
1
Timer Counter 0 status,
bits [5:0]
2
Timer Counter 0 base
count low byte
01h
2
1
DMA Chan 0 base count
low byte
2
DMA Chan 0 base count
high byte
40h
7
3
Timer Counter 0 base
count high byte
4
Timer Counter 1 base
count low byte
02h
2
1
DMA Chan 1 base
address low byte
2
DMA Chan 1 base
address high byte
5
Timer Counter 1 base
count high byte
6
Timer Counter 2 base
count low byte
03h
2
1
DMA Chan 1 base count
low byte
2
DMA Chan 1 base count
high byte
41h
1
7
Timer Counter 2 base
count high byte
Timer Counter 1 status,
bits [5:0]
04h
2
1
DMA Chan 2 base
address low byte
2
DMA Chan 2 base
address high byte
42h
1
70h
1
Timer Counter 2 status,
bits [5:0]
Bit 7 = NMI Enable,
Bits [6:0] = RTC Address
05h
2
1
DMA Chan 2 base count
low byte
C4h
2
2
DMA Chan 2 base count
high byte
1
DMA Chan 5 base address
low byte
2
DMA Chan 5 base address
high byte
06h
2
1
DMA Chan 3 base
address low byte
2
DMA Chan 3 base
address high byte
C6h
2
1
DMA Chan 5 base count
low byte
2
DMA Chan 5 base count
high byte
07h
2
1
DMA Chan 3 base count
low byte
C8h
2
2
DMA Chan 3 base count
high byte
1
DMA Chan 6 base address
low byte
2
DMA Chan 6 base address
high byte
1
DMA Chan 0-3
Command²
CAh
2
2
DMA Chan 0-3 Request
1
DMA Chan 6 base count
low byte
2
DMA Chan 6 base count
high byte
08h
6
3
DMA Chan 0 Mode:
Bits(1:0) = “00”
4
DMA Chan 1 Mode:
Bits(1:0) = “01”
CCh
2
1
DMA Chan 7 base address
low byte
2
DMA Chan 7 base address
high byte
5
DMA Chan 2 Mode:
Bits(1:0) = “10”
6
DMA Chan 3 Mode:
Bits(1:0) = “11”.
CEh
2
1
DMA Chan 7 base count
low byte
2
DMA Chan 7 base count
high byte
Notes:
1.
The OCW1 register must be read before entering Alternate Access Mode.
2.
Bits 5, 3, 1, and 0 return 0.
3.
The additional write-only registers are described in their respective sections.
Intel^® EP80579 Integrated Processor Product Line Datasheet
1092
August 2009
Order Number: 320066-003US