Asahi KASEI AK4588, Manual, Page: 58 / 76

ASAHI KASEI [AK4589]
MS0339-E-00 2004/09
- 58 -
Register Definitions
Reset & Initialize
Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0
00H CLK & Power Down Control CS12 BCU CM1 CM0 OCKS1 OCKS0 PWN RSTN2
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Default 0 1 0 0 0 0 1 1
RSTN2: Timing Reset & Register Initialize
0: Reset & Initialize
1: Normal Operation
PWN: Power Down
0: Power Down
1: Normal Operation
OCKS1-0: Master Clock Frequency Select
CM1-0: Master Clock Operation Mode Select
BCU: Block start & C/U Output Mode
When BCU=1, the three Output Pins(BOUT, COUT, UOUT) become to be enabled.
The block signal goes high at the start of frame 0 and remains high until the end of frame 31.
CS12: Channel Status Select
0: Channel 1
1: Channel 2
Selects which channel status is used to derive C-bit buffers, AUDION, PEM, FS3, FS2, FS1, FS0,
Pc and Pd. The de-emphasis filter is controlled by channel 1 in the Parallel Mode.
Format
& De-emphasis Control
Addr Register Name D7 D6 D5 D4 D3 D2 D1 D0
01H Format & De-em Control 0 DIF2 DIF1 DIF0 DEAU DEM1 DEM0 DFS
R/W RD R/W R/W R/W R/W R/W R/W R/W
Default 0 1 1 0 1 0 1 0
DFS: 96kHz De-emphasis Control
DEM1-0: 32, 44.1, 48kHz De-emphasis Control (see Table 24.)
DEAU: De-emphasis Auto Detect Enable
0: Disable
1: Enable
DIF2-0: Audio Data Format Control (see Table 29.)