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4-60 C156-E205-01EN
4.6.9 READ (10) command
Table 4.81 READ (10) command
Bit
Byte
76543210
0 Operation Code (28h)
1 Reserved
2-5 Logical Block Address
6 Reserved
7-8 Transfer Length
9-11 Reserved
The READ (10) command reads data for the specified number of blocks from the
specified logical block address and transfers it.
Logical Block Address specifies the head logical block address used to start
reading.
Transfer Length specifies the number of blocks to be read and transferred.
When Transfer Length is 0, the command does not carry out data transfer. It
simply ends normally without reading any data.
4.6.10 READ CAPACITY command
Table 4.82 READ CAPACITY command
Bit
Byte
76543210
0 Operation Code (25h)
1 Reserved
2-7 Reserved
8 Reserved PMI
9-11 Reserved
The READ CAPACITY command transfers data on the media capacity to the host.
The PMI (Partial Medium Indicator) bit specified value is ignored.
Table 4.83 lists the READ CAPACITY data to be transferred.