ATA20 White Electronic Designs Corporation, ATA20 Datasheet - Page 32
ATA20
Manufacturer Part Number
ATA20
Description
Density = 8MB-160MB ;; Memory Device = Hitachi Flash ;; Organization = X16/x8 ;; Speed (ns) = 250 ;; Volt = 3/5 ;;
Manufacturer
White Electronic Designs Corporation
Datasheet
1.ATA20.pdf
(66 pages)
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June 2000 Rev. 5 – ECO #12935
Secondary I/O Map (INDEX = 3)
-REG A10
0
0
0
0
0
0
0
0
0
0
True IDE Mode I/O Map
-CE2
1
1
1
1
1
1
1
1
0
0
7PxxxATA20xxC25
-CE1
0
0
0
0
0
0
0
0
1
1
A9 to A4 A3
17H
17H
17H
17H
17H
17H
17H
17H
37H
37H
A2
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
A1
0
0
1
1
0
0
1
1
1
1
A2
0
0
0
0
1
1
1
1
1
1
A1
0
0
1
1
0
0
1
1
1
1
A0
0
1
0
1
0
1
0
1
0
1
A0
0
1
0
1
0
1
0
1
0
1
32
-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
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 low register
Cylinder high register
Drive head register
Command register
Device control register
Reserved
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