SH7263 Datasheet, PDF (1165/1862 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7260 Series

Section 21 CD-ROM Decoder (ROM-DEC)
21.3.53 CD-ROM Decoder Stream Data Output Register (STRMDOUT0)
The CD-ROM decoder stream data output register (STRMDOUT0) holds 2 bytes (from MSB) of
the 4 bytes of data that is to be output from the CD-ROM decoder.
Bit: 15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
STRMDOUT[15:0]
Initial value: 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W: R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
R
Bit Bit Name
15 to 0 STRMDOUT
[15:0]
Initial
Value R/W
H'0000 R
Description
Indicate 2 bytes (from MSB) of the 4 bytes of data that
is to be output from the CD-ROM decoder.
The CD-ROM decoder has a 4-byte wide data window
or set of registers for the output of decoded data. Every
time the relevant register is accessed, further data of
access size are output sequentially in the output format
that is separately defined. The amount of data for one
sector is 2768 bytes. Always read 2768 bytes.
Rev. 2.00 Mar. 14, 2008 Page 1131 of 1824
REJ09B0290-0200