Table 5.29 Feature Control Command - Fujitsu MHY2200BS Product/Maintenance Manual

Table 5.29 FEATURE CONTROL COMMAND

Byte(hex) Name
00, 01 Action Code
Function
02, 03
Code
04, 05 Feature Code
06, 07 New State
08, 09 Option Flag
0A to 1FF (Reserved)
C141-E269
Value
0004h FEATURE CONTROL COMMAND
0001h Set New State
Return Current State
0002h
Current Feature Control State is displayed in SN/SC
field.
Return Option Flag
0003h
Current Option Flag is displayed in SN/SC field.
0001h Write Cache
0002h Write Reordering
0003h Set time interval for temperature logging
Feature Code = 0001h (Set Write Cache)
0001h: Allow write cache operation to be
determined by ATA Set Feature command.
0002h: Force Write Cache enabled.
0003h: Force Write Cache disable.
Feature Code = 0002h(Set Write Reordering)
0001h: Enable Write Reordering
(2 byte)
0002h: Disable Write Reordering
Feature Code = 0003h(Set time interval)
0000h:
0001h-FFFFh: Logging interval in minutes
(ex.) 0001h:
000Fh:
Bit 15-1: Reserved
Bit0: 1 = Maintain the state at COMRESET/Power
(2 byte) cycle.
0 = Revert to default setting at
COMRESET/Power cycle.
- Reserved
5.3 Host Commands
Description
Invalid
Temperature data collection
interval is 1min.
Temperature data collection
interval is 15min.
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