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Section 23 CD-ROM Decoder
R01UH0134EJ0400 Rev. 4.00 Page 1207 of 2108
Sep 24, 2014
SH7262 Group, SH7264 Group
Bit Bit Name
Initial
Value R/W Description
7 0 R/W Reserved
The write value may be 0 or 1. When read, this bit has
the value previously written to it.
6 LINK2 0 R/W Link Block Detection Condition
0: The block is regarded as a link block when either run-
out 1 or 2 and both run-in 3 and 4 have been
detected.
1: The block is regarded as a link block when two out of
run-out 1 and 2 and “link” have been detected.
The condition for setting of the LINK_ON bit in
CROMST5 is decoding of the link sector.
5 0 R/W Reserved
This bit is always read as 0. The write value should
always be 0.
4 ER0SEL 0 R/W CD-ROM Data-Related Status Register Setting
Condition
0: Information is on the sector being decoded.
1: Information is on the latest sector that has been
buffered.
This condition affects the information given by bits 5 to
0 in the CROMST0 register, bits 7 to 1 in the
CROMST4 and CROMST5 registers, and HEAD00 to
HEAD02.
3 NO_ECC 0 R/W ECC correction mode when the result of the EDC check
before ECC correction was ‘pass’
When this bit is set to 1, ECC correction is not
performed if the result of pre-correction EDC checking
is a ‘pass’, regardless of the results of syndrome
calculation.
2 to 0 All 0 R/W Reserved
These bits are always read as 0. The write value should
always be 0.