ATA25 White Electronic Designs Corporation, ATA25 Datasheet - Page 30
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ATA25
Manufacturer Part Number
ATA25
Description
Density = 32MB-1GB ;; Memory Device = Hitachi Flash ;; Organization = X16/x8 ;; Speed (ns) = 250 ;; Volt = 3/5 ;;
Manufacturer
White Electronic Designs Corporation
Datasheet
1.ATA25.pdf
(62 pages)
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June 2000 Rev. 1 – ECO #12936
Contiguous I/O Map (INDEX = 1)
-REG A10 to A4 A3
0
0
0
0
0
0
0
0
0
0
0
0
0
Primary I/O Map (INDEX = 2)
-REG A10
0
0
0
0
0
0
0
0
0
0
7PxxxATA25xxC25
A9 to A4 A3
1FH
1FH
1FH
1FH
1FH
1FH
1FH
1FH
3FH
3FH
0
0
0
0
0
0
0
0
1
1
1
1
1
A2
0
0
0
0
1
1
1
1
0
0
1
1
1
0
0
0
0
0
0
0
0
0
0
A1
0
0
1
1
0
0
1
1
0
0
0
1
1
A2
0
0
0
0
1
1
1
1
1
1
A0
0
1
0
1
0
1
0
1
0
1
1
0
1
A1
0
0
1
1
0
0
1
1
1
1
Offset
A0
0H
1H
2H
3H
4H
5H
6H
7H
8H
9H
DH
EH
FH
0
1
0
1
0
1
0
1
0
1
30
-IORD = L
Data register
Error register
Sector count register
Sector number register
Cylinder low register
Cylinder high register
Drive head register
Status register
Alt. status register
Drive address register
-IORD = L
Data register
Error register
Sector count register
Sector number register
Cylinder low register
Cylinder high register
Drive head register
Status register
Dup. even data register Dup. even data register
Dup. odd data register
Dup. error register
Alt. status register
Drive address register
White Electronic Designs Corporation (508) 366-5151
-IOWR = L
Data register
Feature register
Sector count register
Sector number register
Cylinder low register
Cylinder high register
Drive head register
Command register
Device control register
Reserved
-IOWR = L
Data register
Feature register
Sector count register
Sector number register
Cylinder high register
Drive head register
Command register
Dup. odd data register
Dup. feature register
Device control register
Reserved
Cylinder low register