SH7261 datasheet(25/1348 Pages) RENESAS

25 / 1348 page

Rev. 2.00 Sep. 07, 2007 Page xxv of xxxii

20.6.4 Slave Transmit Operation ..................................................................................... 938

20.7

Interrupt Sources................................................................................................................ 939

20.8

Usage Notes ....................................................................................................................... 941

20.8.1 Notes when the Communications have not been Completed within the

Maximum Number of Transmit Bytes .................................................................. 941

Section 21 CD-ROM Decoder (ROM-DEC).....................................................943

21.1

Features.............................................................................................................................. 943

21.1.1 Formats Supported by ROM-DEC........................................................................ 944

21.2

Block Diagrams ................................................................................................................. 945

21.3

Register Descriptions ......................................................................................................... 949

21.3.1 ROM-DEC Enable Control Register (CROMEN) ................................................ 952

21.3.2 Sync Code-Based Synchronization Control Register (CROMSY0) ..................... 953

21.3.3 Decoding Mode Control Register (CROMCTL0) ................................................ 954

21.3.4 EDC/ECC Check Control Register (CROMCTL1) .............................................. 956

21.3.5 Automatic Decoding Stop Control Register (CROMCTL3)................................. 957

21.3.6 Decoding Option Setting Control Register (CROMCTL4) .................................. 958

21.3.7 HEAD20 to HEAD22 Representation Control Register (CROMCTL5) .............. 959

21.3.8 Sync Code Status Register (CROMST0) .............................................................. 960

21.3.9 Post-ECC Header Error Status Register (CROMST1).......................................... 961

21.3.10 Post-ECC Subheader Error Status Register (CROMST3) .................................... 962

21.3.11 Header/Subheader Validity Check Status Register (CROMST4) ......................... 963

21.3.12 Mode Determination and Link Sector Detection Status Register

(CROMST5) ......................................................................................................... 964

21.3.13 ECC/EDC Error Status Register (CROMST6) ..................................................... 965

21.3.14 Buffer Status Register (CBUFST0) ...................................................................... 966

21.3.15 Decoding Stoppage Source Status Register (CBUFST1) ..................................... 967

21.3.16 Buffer Overflow Status Register (CBUFST2) ...................................................... 968

21.3.17 Pre-ECC Correction Header: Minutes Data Register (HEAD00) ......................... 968

21.3.18 Pre-ECC Correction Header: Seconds Data Register (HEAD01)......................... 969

21.3.19 Pre-ECC Correction Header: Frames (1/75 Second) Data Register

(HEAD02)............................................................................................................. 969

21.3.20 Pre-ECC Correction Header: Mode Data Register (HEAD03)............................. 969

21.3.21 Pre-ECC Correction Subheader: File Number (Byte 16) Data Register

(SHEAD00) .......................................................................................................... 970

21.3.22 Pre-ECC Correction Subheader: Channel Number (Byte 17) Data Register

(SHEAD01) .......................................................................................................... 970

21.3.23 Pre-ECC Correction Subheader: Sub-Mode (Byte 18) Data Register

(SHEAD02) .......................................................................................................... 971

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