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Section 23 CD-ROM Decoder
Page 1220 of 2108 R01UH0134EJ0400 Rev. 4.00
Sep 24, 2014
SH7262 Group, SH7264 Group
23.3.20 Pre-ECC Correction Header: Mode Data Register (HEAD03)
The pre-ECC correction header: mode data register (HEAD03) indicates the mode value in the
header before ECC correction.
76543210
00000000
RRRRRRRR
Bit:
Initial value:
R/W:
HEAD03[7:0]
Bit Bit Name
Initial
Value R/W Description
7 to 0 HEAD03
[7:0]
All 0 R Mode value in the header before ECC correction
23.3.21 Pre-ECC Correction Subheader: File Number (Byte 16) Data Register (SHEAD00)
The pre-ECC correction subheader: file number (byte 16) data register (SHEAD00) indicates the
file number value in the subheader before ECC correction (byte 16).
76543210
00000000
RRRRRRRR
Bit:
Initial value:
R/W:
SHEAD00[7:0]
Bit Bit Name
Initial
Value
R/W Description
7 to 0 SHEAD00
[7:0]
All 0 R Indicates file number value in the subheader before
ECC correction (byte 16).
For sectors not in Mode 2, this register contains the
byte of data at the corresponding position.