241
Western Digital Hard Disk Drive OEM Specification
11.45
Sense Condition (F0h : Vendor specific)
Com m and Block Output Registers
Com m and Block Input Registers
Register
7
6
5
4
3
2
1
0
Register
7
6
5
4
3
2
1
0
Data
-
-
-
-
-
-
-
-
Data
-
-
-
-
-
-
-
-
Feature
0
0
0
0
0 0
0
1
Error
…See Below …
Sector Count
-
-
-
-
-
-
-
-
Sector Count
V V V V V V V V
Sector Number
-
-
-
-
-
-
-
-
Sector Number
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder Low
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Cylinder High
-
-
-
-
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Device/Head
-
-
-
-
-
-
-
-
Command
1
1
1
1
0 0
0
0
Status
…See Below …
Error Register
Status Register
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
CRC
UNC
0
IDN
0
ABT
T0N
AMN
BSY
RDY
DF
DSC
DRQ
COR
IDX
ERR
0
0
0
0
0
V
0
0
V
V
V
-
V
-
0
V
Table 211 Sense Condition command(F0h)
The Sense Condition command is used to sense temperature in a device.
This command is executable even if a device is in Power up in standby mode.
Output Parameters To The Device
Feature
The Feature register must be set to 01h. All other value is rejected with setting ABORT bit in
status register.
Input Parameters From The Device
Sector Count
The Sector Count register contains result value.
Value
Description
00h
Temperature is equal to or lower than -20 deg C
01h-FEh Temperature is (Value / 2 - 20) deg C
FFh
Temperature is higher than 107 deg C
