Datasheet

2003 Apr 10 43
NXP Semiconductors Preliminary specification
Stereo audio codec with SPDIF interface UDA1355H
Table 30 Description of register bits (address 01H)
Table 31 Register address 02H
Table 32 Description of register bits (address 02H)
BIT SYMBOL DESCRIPTION
15 to 9 − reserved
8 MUTE_DAO Digital mute setting. If this bit is logic 0, then the digital output is not muted; if this bit is
logic 1, then the digital output is muted.
7PON_DIGOPower control digital output. If this bit is logic 0, then the digital output is in Power-down
mode; if this bit is logic 1, then the digital output is in power-on mode. The registers have
their own clock, which means that there cannot be a dead-lock situation.
6 − reserved
5 and 4 DIGOUT[1:0] Input selector for digital output. Value to select the input signal for the digital output. The
default input will be chosen if in an application an invalid data signal is selected:
00 = ADC input
01 = digital input
10 = IEC 60958 input
11 = interpolator mixer output
3 − reserved
2to0 SFORO[2:0] Digital output format. Value to set the digital output format:
000 = I
2
S-bus
001 = LSB-justified; 16 bits
010 = LSB-justified; 18 bits
011 = LSB-justified; 20 bits
100 = LSB-justified; 24 bits
101 = MSB-justified
110 = not used; output is default value
111 = not used; output is default value
BIT15 14131211 10 9 8
Symbol − −−−− − − −
Default0 0000 0 0 0
BIT7 6543 2 1 0
Symbol PON_DIGI −−−−SFORI2 SFORI1 SFORI0
Default1 0000 0 0 0
BIT SYMBOL DESCRIPTION
15 to 8 − reserved
7PON_DIGIPower control digital input. If this bit is logic 0, then the digital input is in Power-down
mode; if this bit is logic 1, then the digital input is in power-on mode. The registers have their
own clock, which means that there cannot be a dead-lock situation.
6to3 − reserved