CS8416-IS Cirrus Logic, CS8416-IS Datasheet - Page 26

• Manufacturer Part Number: CS8416-IS
• Description: 192 kHZ DIGITAL AUDIO INTERFACE RECEIVER
• Manufacturer: Cirrus Logic

INT[1:0] - Interrupt output pin (INT) control
CHS – Sets which channel's C data is decoded in the Receiver Channel Status register
8.3
DETCI – D to E status transfer inhibit
Emph_CNTL[2:0] – De-emphasis filter control
GPO0SEL[3:0] – GPO0 Source select. See GPO section in main text for settings table.
8.4
26
GPO1SEL3
DETCI
7
7
Control2 (02h)
Control3 (03h)
EMPH_CNTL2 EMPH_CNTL1 EMPH_CNTL0 GPO0SEL3
Default = ‘00’
00 - Active high; high output indicates interrupt condition has occurred
01 - Active low, low output indicates an interrupt condition has occurred
10 - Open drain, active low. Requires an external pull-up resistor on the INT pin. Thus it is not recom-
11 – Reserved
0 – A channel
1 – B channel
Default = ‘0’
0 – Allow update
1 – Inhibit update
Default = 000
000 – De-emphasis filter off
001 – 32 KHz setting
010 – 44.1 KHz setting
011 – 48 KHz
100 – 50us/15us de-emphasis filter auto-select on. Coefficients(32, 44.1 or 48 KHz or no de-empha-
sis filter at all) match the pre-emphasis and sample frequency indicators in the channel status bits of
Channel A. Thus it is impossible to have de-emphasis applied to one channel but not the other. Also
it turns off the de-emphasis filter if the audio data is detected to be non-linear data.
Default = 0000
GPO1SEL2
mended to multiplex INT onto GPO2 in I
quired on GPO2 to specify the AD2 bit of the chip address.
6
6
GPO1SEL1
5
5
GPO1SEL0
4
4
2
GPO2SEL3
C control port mode since an external resistor is re-
3
3
GPO0SEL2
GPO2SEL2
2
2
GPO0SEL1
GPO2SEL1
1
1
GPO0SEL0
CS8416
GPO2SEL0
DS578PP2
0
0