W90221X Winbond Electronics Corp America, W90221X Datasheet - Page 130

• Manufacturer Part Number: W90221X
• Description: Pa-risc Embedded Controller
• Manufacturer: Winbond Electronics Corp America

Bits 9-10
Bits 11-15
Bits 16-20
Bit 21
Bit 22
Bit 23
Bit 24
Bit 25
Bit 26
Bit 27
W90221X version 0.6
1X
10
11
00
01
0
1
0
1
0
1
0
1
1
1
1
32-bit type, length counter counts by word
Undefined
DMA transfer type
Memory-to-memory transfer
Memory-to-I/O transfer
I/O-to-memory transfer
DMA I/O read/write command recovery time
This field defines the recovery cycles between two read/write
commands.
DMA I/O read/write command wait state
This field defines the I/O read/write command wait state.
Set DACK0 low active
Set DMA acknowledge signal DACK0 to high active
Set DMA acknowledge signal DACK0 to low active
Set DACK1 low active
Set DMA acknowledge signal DACK1 to high active
Set DMA acknowledge signal DACK1 to low active
Set CS0 low active
Set I/O device chip select CS0 to high active
Set I/O device chip select CS0 to low active
Set CS1 low active
Set I/O device chip select CS1 to high active
Set I/O device chip select CS1 to low active
DACK1 active
Indicate DMA channel 1 acknowledge DACK1 is active
Channel 0 time out (read only)
Indicate channel 0 IORDY signal timeout
Channel 1 time out (read only)
Indicate channel 1 IORDY signal timeout
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