MD1050-DCC M-Systems Inc., MD1050-DCC Datasheet - Page 19
MD1050-DCC
Manufacturer Part Number
MD1050-DCC
Description
Diskonchip Ide Pro Data Sheet
Manufacturer
M-Systems Inc.
Datasheet
1.MD1050-DCC.pdf
(53 pages)
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Definition of abbreviations:
Registers − FR: Feature register, SC: Sector Count register, SN: Sector Number register, CY:
Cylinder registers, DH: Drive/Head register
Symbols − : The register is valid, D: Only drive parameters are valid, H: Only head parameters
are valid
5.1
5.1.1
This command checks the current power mode of DiskOnChip IDE Pro.
When this command is issued in Sleep mode, or is being set to/recovering from Sleep mode,
DiskOnChip IDE Pro sets the BSY bit in the Status register and the Sector Count register to
Then the BSY bit is cleared, and an interrupt is generated.
When DiskOnChip IDE Pro is in Idle mode, it sets the BSY bit in the Status register and the Sector
Count register to
generated.
18
Sector Number
Cylinder High
Sector Count
Sector Count
Cylinder Low
Device/Head
Command
Register
Register
Features
Status
Error
Command Set Description
Check Power Mode – 98h, E5h
FFh
. Then the BSY bit in the Status register is cleared, and an interrupt is
BSY
R
7
1
7
0
DRDY
UNC
DiskOnChip IDE Pro Data Sheet, Rev. 1.5
6
6
1
0
MC
DF
5
1
5
0
0
Power Mode Code (00h or FFh)
OUTPUT
INPUT
IDNF
DSC
D
4
4
1
0
98h or E5h
MCR
DRQ
3
0
0
3
CORR
ABRT
2
0
0
2
TKONF
IDX
1
1
0
0
91-SR-012-01-8L
00h
AMNF
ERR
0
0
0
0
.
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