5.3 Host Commands
(25) WRITE BUFFER (X’E8’)
The host system can overwrite the contents of the data buffer of the device with a
desired data pattern by issuing this command. Upon receipt of this command, the
device transfers the PIO Setup. After that, 512 bytes of data is transferred from
the host and the device writes the data to the buffer, then reports the status .
• Error reporting conditions
(1) A SATA communication error occurred (ST = 51h, ER = 14h).
At command issuance (Shadow Block Registers setting contents)
CM 1 1 1 0 1 0 0 0
x x x x xx
CH
CL
SN
SC
FR
xx
xx
xx
xx
xx
DH
At command completion (Shadow Block Registers contents to be read)
ST Status information
DH x x x x xx
CH
CL
SN
SC
ER
xx
xx
xx
xx
Error information
C141-E254 5-103
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