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Description

1.2.4

Function Control

Table 1. SW002: FMT0, FMT1 PCM Audio Data Format Selection

FMT[1:0] SETTING

FMT1

FMT0

L

L

L

H

H

L

H

H

DOUT SERIAL AUDIO DATA OUTPUT FORMAT

16-bit MSB first, right justified 24-bit MSB first, right justified 24-bit MSB first, left justified 24-bit MSB first, I2S

PSCK1

PSCK0

SCKO

BCKO

LRCKO

L

L

128fs

64fs

fs

L

H

256fs

64fs

fs

H

L

384fs

64fs

fs

H

H

512fs

64fs

fs

Table 2. SW002: PSCK0, PSCK1 System Clock Frequency Selection

PSCK[1:0] SETTING

OUTPUT CLOCK AT PLL SOURCE

1.2.5

Operation Mode Control SW004 is the fundamental operation mode control for DIR9001.

XTAL: Outputs connected at the XTAL resonator clock and divided clock

AUTO: Outputs from either the PLL generated clock or the XTAL clock are automatically selected by the operation status of DIR9001. DIR9001 is locked into SPDIF interface clock PLL clock DIR9001 is unlocked into SPDIF interface clock XTAL clock

PLL: Outputs from the PLL generated clock If in the PLL mode operation, XTAL clock is not required for all operations of the DIR9001.

1.2.6

CN003 Status Output

CN003 is the output for the Channel status (COUT), User bit (UOUT), Bit frame (BFRAME), and clock transition status (CLKST).

      • 1.2.7

        Status Indicator The following status is shown with an LED indicator.

        • ERROR : Unlock or Data parity error

        • AUDIO : non audio data

        • EMPH : with pre-emphasis

        • FSOUT1 : detected sampling rate

        • FSOUT2 : detected sampling rate

SLAU225–July 2007 Submit Documentation Feedback

DIR9001 Evaluation Board

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