Datasheet

2003 Apr 10 56
NXP Semiconductors Preliminary specification
Stereo audio codec with SPDIF interface UDA1355H
12.2.5 SPDIF OUTPUT SETTINGS
Table 67 Register address 50H
Table 68 Description of register bits (address 50H)
BIT 15 14 13 12 11 10 9 8
Symbol −−− − − − − SPDO_ VALID
Default 0 0 0 0 0 0 0 0
BIT76543210
Symbol − L_r_copy − PON_SPDO DIS_SPDO SPDOUT_SEL2 SPDOUT_SEL1 SPDOUT_SEL0
Default 0 1 0 1 0 1 0 0
BIT SYMBOL DESCRIPTION
15 to 9 − reserved
8 SPDO_VALID SDPDIF output valid. If this bit is logic 0 then the SPDIF output is invalid; if this bit is
logic 1 then the SPDIF output is valid.
7 − reserved
6 L_r_copy SPDIF channel status copy. If this bit is logic 0 then the status bits of the left channel
are not copied to the right channel; if this bit is logic 1 then the status bits of the left
channel are copied to the right channel.
5 − reserved
4PON_SPDO Power control of SPDIF output. If this bit is logic 0 then the SPDIF output is switched
to Power-down mode; if this bit is logic 1 then the SPDIF output is switched to
power-on mode.
3 DIS_SPDO SPDIF encoder enable. If this bit is logic 0 then the SPDIF encoder is enabled; if this
bit is logic 1 then the SPDIF encoder is disabled.
2 to 0 SPDOUT_SEL[2:0] SPDIF output source selector. Value to select the input source for SPDIF output.
The selection option to select the SPDIF input just after the slicer was already there.
Added is an independent selection of the input signals SPDIF0 to SPDIF3:
000 = ADC
001 = I
2
S-bus input
010 = not used
011 = interpolator mix output
100 = SPDIF0 loop through
101 = SPDIF1 loop through
110 = SPDIF2 loop through
111 = SPDIF3 loop through