Maxtor D740X-6L 20.0 AT Product Manual page 82

ATA Bus Interface and ATA Commands
D r i v e P a r a m e t e r s
WCE – Write Cache Enable (Byte 39, Bit 2): When this bit is set to1, the Maxtor
D740X-6L 20.0/40.0/60.0/80.0GB AT hard disk drives enable the Write Cache.
This indicates that the drive returns GOOD status for a write command after
successfully receiving the data, but before writing it to the disk. A value of zero
indicates that the drive returns GOOD status for a write command after successfully
receiving the data and writing it to the disk.
If the next command is another WRITE command, cached data continues to be
written to the disk while new data is added to the buffer. The default setting is 1.
RUEE – Reallocate Uncorrectable Error Enables (Byte 39, Bit 1): When set
to 1, this bit indicates that the Maxtor D740X-6L 20.0/40.0/60.0/80.0GB AT hard
disk drives will automatically reallocate uncorrectable hard errors, if the ARR bit (byte
36, bit 6) is set to 1. The default setting is 1.
      5 / # 4 6 4 ' # & # 6 6 4 + $ 7 6 ' 6 * 4 ' 5 * 1 . & 5
COMMAND CODE - B0h
TYPE - Optional - SMART Feature set. If the SMART feature set is implemented,
this command is optional and not recommended.
PROTOCOL - PIO data in
INPUTS - The Features register shall be set to D1h. The Cylinder Low register shall
be set to 4Fh. The Cylinder High register shall be set to C2h.
4 G I K U V G T
Features
Sector Count
Sector Number
Cylinder Low
Cylinder High
Device/Head
Command
NORMAL OUTPUTS - None
ERROR OUTPUTS - If the device does not support this command, if SMART
disabled or if the values in the Features, Cylinder Low or Cylinder High registers are
invalid, an Aborted command error is posted.
4 G I K U V G T
Error
Sector Count
Sector Number
Cylinder Low
6-16 Maxtor D740X-6L 20.0/40.0/60.0/80.0GB AT
  
1 1
  
na UNC na
na
na
na
  
D1h
4Fh
C2h
D
B0h
  
IDNF na ABRT na
 
 
na