CXD1818R Datasheet, PDF (37/112 Pages) Sony Corporation – CD-ROM Decoder

CXD1818R
bit 1:
bit 0:
ENDLA (enable drive last area (address))
High: DLAR (Drive Last Area) is enabled. While the decoder is executing a write-only command,
real-time error correction command, or CD-DA command, if buffering of the buffer memory
area specified by DLAR is completed, the DRVOVRN (drive overrun) status results. Buffer-
write of subsequent sectors is then interrupted.
Also, while the decoder is executing a subcode buffering command, if data is written in the
buffer memory address specified by SLADR, the DRVOVRN (Drive Overrun) status results.
Buffer-write of subsequent sectors is then interrupted.
Low: DLAR (Drive Last Area) and SLADR are disabled when this is set low.
ATDLRNEW (auto DLARA renewal)
High: When the data transfer to the host is completed for one sector, DLARA is renewed in the
written area of the sector.
Low: DLARA is renewed by the sub CPU.
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