92HD66B Datasheet, PDF (14/286 Pages) Integrated Device Technology – FOUR CHANNEL HD AUDIO CODECS

92HD66B
FOUR CHANNEL HD AUDIO CODECS WITH DUAL CAPLESS HEADPHONE AMPLIFIERS
Per HDA015-B, the SPDIF outputs support the ability to provide clocking information even when no
stream is selected for the converter, or when in a low power state. Also, as stated in the DCN, the
SPDIF output ports support port presence detect.
AFG
Power
State
D0-D4
D0-D4
D0-D4
D0-D4
D0
D1-D2
D3
D3cold
D4
D5
SPDIF Outputs are outlined in tables below. .
RESET#
GPIO0 Input Output
Enable Enable Enable
Keep
Alive
En
Converter Stream
Dig En
ID
Pin
Mode
Pin Behavior
Asserted
(Low)
-
-
-
-
-
-
Hi-Z immediately after power on,
otherwise the previous state is
retained.
De-Asserted
(High)
0
0
0
-
-
-
Hi-Z
De-Asserted
(High)
1
-
-
-
-
Active - Pin reflects GPIO0
-
GPIO
configuration (internal pull-down
enabled)
De-Asserted
(High)
0
1
0
-
-
SPDIF
-
IN or Pin functions as SPDIF input or DMIC
DMIC
input
IN
0
-
Active - Pin drives 0
0
De-Asserted
(High)
0
0
1
0
1
1-15
0
-
Active - Pin drives SPDIF-format, but
data is zeroes
Active - Pin drives SPDIFOut1 data
Active - Pin drives SPDIF-format, but
data is zeroes
1
0
1
1-15
Active - Pin drives SPDIF-format, but
data is zeroes
Active - Pin drives SPDIFOut1 data
0
0
-
Active - Pin drives 0
0
1
De-Asserted
(High)
0
0
1
1
0
1
1
-
Active - Pin drives 0
-
SPDIF ^{Active - Pin drives SPDIF-format, but}
OUT
data is zeroes
-
Active - Pin drives SPDIF-format, but
data is zeroes
0
0
-
Hi-Z
0
1
-
De-Asserted
(High)
0
0
1
1
0
-
Hi-Z
Active - Pin drives SPDIF-format, but
data is zeroes
1
1
-
Active - Pin drives SPDIF-format, but
data is zeroes
De-Asserted
(High)
0
0
1
-
-
-
Hi-Z
De-Asserted
(High)
0
0
1
-
-
-
Hi-Z
-
-
-
-
-
-
-
Hi-Z
Table 6. SPDIF OUT 0 or 1 Behavior
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92HD66B