OEM MANUAL:K6602771
6 COMMAND DESCRIPTIONS
Revision: 2 / Date: 2002.12.19
Page: 167 / 313
Table 6-40 Error Control Bit Combinations (cont’d)
1
0
1
1
- Invalid request (EER on, DCR on)
(PER off, DTE on)
1
1
0
0
- Same as (0100) above except that correction is
applied first (EER on, DCR off).
1
1
0
1
- Invalid request (EER on, DCR on)
1
1
1
0
- Same as (0110) above except that correction is
applied first (EER on, DCR off).
1
1
1
1
- Invalid request (EER on, DCR on)
Read Retry Count and Write Retry Count specify the host permissible retry counts
for an error recovery operations executed by the controller.
The controller retries within these retry counts specified by the host computer.
Retry count 0 indicates that the host permissible error recovery operations are not
executed, The error correction by ECC and the host impermissible recovery
operations, however, may be executed if it is permitted.
The correction Span specifies the maximum error bits span to be corrected by the
controller.
The controller corrects an ECC error within the specified maximum error bits span,
if the error correction is permitted.
Head Offset Count specifies the offset value of the head position from the center of
track. (Count value range ; FE
H
to 02
H
= -2 to +2, + ; offset toward the inner
periphery.)
The controller executes the head offset as the specified count value.
The controller will change the offset value depending on the retry count in the
error retry
sequence. (See 2.3.1). After the retry operation, the offset is returned to the
Count value. When the write operation is executed, the offset is always returned
to 0.
Data Strobe Offset Count specifies the offset value of the data strobing level from
the standard level. (Count value range ; FE
H
to 02
H
= -2 to +2)
The controller will change the offset value depending on the retry count in the
error retry sequence. (See 2.3.1) After the retry operation, the offset is returned
to the Count value. When the write operation is executed, the offset is always
returned to 0.
MODE SELECT:(15h)