Travelstar 80GN Hard Disk Drive Specification
64
10.1 Alternate Status Register
Table 38: Alternate Status Register
This register contains the same information as the Status Register. The only difference between this register and the
Status Register is that reading the Alternate Status Register does not imply an interrupt acknowledge or a clear of a
pending interrupt. See Section 10.12, "Status Register," on page 67 for the definition of the bits in this register.
10.2 Command Register
This register contains the command code being sent to the device. Command execution begins immediately after
this register is written. The command set is shown in Table 58: , "Command Set (1 of 2)," on page 97 and Table
59: , "Command Set (2 of 2)," on page 98. All other registers required for the command must be set up before writ-
ing to the Command Register.
10.3 Data Register
This register is used to transfer data blocks between the device data buffer and the host. It is also the register
through which sector information is transferred on a Format Track command and the configuration information is
transferred on an Identify Device command.
All data transfers are 16 bits wide, except for ECC byte transfers, which are 8 bits wide. Data transfers are PIO
only.
The register contains valid data only when DRQ = 1 is in the Status Register.
7
6
5
4
3
2
1
0
BSY
RDY
DF
DSC
DRQ
COR
IDX
ERR
Содержание IC25N020ATMR04
Страница 4: ......
Страница 10: ...15 2 SET FEATURES Commands Support Coverage 197 15 3 Changes from Travelstar 60GH and 40GN 198 ...
Страница 14: ......
Страница 20: ...Travelstar 80GN Hard Disk Drive Specification 10 ...
Страница 21: ...Travelstar 80GN Hard Disk Drive Specification 11 Part 1 Functional specification ...
Страница 22: ...Travelstar 80GN Hard Disk Drive Specification 12 ...
Страница 24: ...Travelstar 80GN Hard Disk Drive Specification 14 ...
Страница 34: ...Travelstar 80GN Hard Disk Drive Specification 24 ...
Страница 48: ...Travelstar 80GN Hard Disk Drive Specification 38 ...
Страница 67: ...Travelstar 80GN Hard Disk Drive Specification 57 Part 2 Interface specification ...
Страница 68: ...Travelstar 80GN Hard Disk Drive Specification 58 ...
Страница 70: ...Travelstar 80GN Hard Disk Drive Specification 60 ...
Страница 72: ...Travelstar 80GN Hard Disk Drive Specification 62 September 19 2003 10 28 am ...
Страница 100: ...Travelstar 80GN Hard Disk Drive Specification 90 ...
Страница 106: ...Travelstar 80GN Hard Disk Drive Specification page 96 ...
Страница 131: ...Travelstar 80GN Hard Disk Drive Specification 121 ...
Страница 202: ...Travelstar 80GN Hard Disk Drive Specification 192 ...
Страница 209: ...Travelstar 80GN Hard Disk Drive Specification 199 ...
Страница 210: ...Travelstar 80GN Hard Disk Drive Specification 200 ...
Страница 213: ...Hitachi Global Storage Technologies V Vibration 33 W Write Buffer 177 Write Cache function 87 Z Zone 16 ...