CXD1803AR View Datasheet(PDF) - Sony Semiconductor

Part Name

Description

Manufacturer

CXD1803AR

CD-ROM DECODER

Sony Semiconductor 

1.3.Sub CPU interface (17 pins)

(1) XWR (sub CPU write: input)

Strobe negative logic input signal for writing IC internal register.

(2) XRD (sub CPU read: input)

Strobe negative logic input signal for reading IC internal register status.

(3) D0 to 7 (sub CPU data bus: input/output)

8-bit data bus.

(4) A0 to 4 (sub CPU address: input)

Address signal for selecting IC internal register from sub CPU.

(5) XINT (sub CPU interrupt: output)

Interrupt request negative logic signal to sub CPU.

(6) XCS (chip select: input)

IC select negative logic signal from sub CPU.

1.4.SCSI controller interface (13pins)

(1) SDRQ (SCSI data request: input)

DMA data request positive logic signal from SCSI controller IC.

(2) XSAC (SCSI DMA acknowledge: output)

DMA acknowledge negative logic signal to SCSI controller IC.

(3) XSWR (SCSI write: negative logic output)

Data write strobe output to SCSI controller IC.

(4) XSRD (SCSI read: negative logic output)

Data read strobe output to SCSI controller IC.

(5) SD0 to 7 (SCSI controller bus: input/output)

SCSI controller data bus signal.

1.5.DAC interface (4 pins)

The output format to DAC is shown in Fig. 1-1.

(1) BCKO (bit clock output: output)

Bit clock output signal to D/A converter.

(2) WCKO (word clock output: output)

Word clock output signal to D/A converter.

(3) LRCO (LR clock output: output)

LR clock output signal to D/A converter.

(4) DATO (data output: output)

Data output signal to D/A converter.

CXD1803AQ/AR

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