20 synchronize cache command, 21 test unit ready command – FUJITSU MCM3064AP User Manual
Page 148
Host Interface
4-78
C156-E227-01EN
4.6.20 SYNCHRONIZE CACHE command
Table 4.109 SYNCHRONIZE CACHE command
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (35h)
1
Logical Unit Number
Reserved
IMMED
Reserved
2-5
Logical Block Address
6
Reserved
7-8
Number of Blocks
9-11
Reserved
The SYNCHRONIZE CACHE command writes cache memory data not written
yet in the data buffer to media.
The IMMED (Immediate) bit is not supported. When the IMMED bit is 1, the
command responds with Check Condition.
The command writes all data not written yet in the cache memory of the data
buffer to media, regardless of the value set in Logical Block Address and Number
of Blocks. The command does not check the value of Logical Block Address and
Number of Blocks.
4.6.21 TEST UNIT READY command
Table 4.110 TEST UNIT READY command
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation Code (00h)
1
Logical Unit Number
Reserved
2-11
Reserved
The TEST UNIT READY command checks if the device is ready for test and
reports the device status to the host.
If the ODD can end normally for appropriate access commands, the command
responds with the Good status. Otherwise, the command responds with Check
Condition to the host.