Table of Contents
Advertisement
5.17 READ LONG:(3E
Bit
Byte
0
1
Logical Unit Number
2
3
4
5
6
7
8
9
Vendor Unique
The READ LONG command transfers the data and CRC/ECC bytes of the block
specified in Logical Block Address to the host computer.
The data transferred to the host computer may contain sets of data which consist of
user data bytes (block length) , CRC/ECC bytes etc.
The CORRCT (Corrected) bit of 0 indicates that the controller transfers data starting
at the block address specified in the Logical Block Address field without ECC
correction.
The CORRCT bit of 1 indicates that the controller transfers data after executing ECC
correction.
The Byte Transfer Length specifies the total number of transfer bytes of data bytes
(block length) and other information bytes (CRC/ECC etc.).
Byte Transfer Length of 0 indicates that no data is transferred. The controller
executes only seek operation to the track including the block specified by Logical
Block Address.
READ LONG:(3Eh)
5 COMMAND DESCRIPTIONS
)
H
7
6
5
0
0
1
Logical Block Address (MSB)
Logical Block Address (LSB)
0
0
0
Byte Transfer Length (MSB)
Byte Transfer Length (LSB)
0
0
0
4
3
Operation Code (3E
1
1
Reserved
0
0
Logical Block Address
Logical Block Address
Reserved
0
0
Reserved
0
0
OEM MANUAL:K6602924
2
1
)
H
1
1
CORRCT
RelAdr
0
0
0
Flag
0
Revision: 1 / Date: 2003.03.06
Page: 213 / 273
0
0
0
0
Link
Advertisement
Table of Contents
