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I2S Interface (for Codec Configuration by Default)
Pin Name
Pin No.
CDC_RST
77
I2S_MCLK
81
I2S_WS
265
I2S_SCK
262
I2S_DIN
263
I2S_DOUT
261
PCM Interface
Pin Name
Pin No.
PCM_SYNC
73
PCM_CLK
75
PCM_IN
76
PCM_OUT
78
AG521R-NA_QuecOpen_Hardware_Design
I/O
Description
DO
Codec reset
Clock output for
DO
codec
IO
I2S word select
DO
I2S clock
DI
I2S data in
DO
I2S data out
I/O
Description
IO
PCM data frame sync
IO
PCM clock
DI
PCM data input
DO
PCM data output
Automotive Module Series
AG521R-NA QuecOpen Hardware Design
DC
Comment
Characteristics
V
max = 0.45 V
OL
V
min = 1.35 V
OH
V
max = 0.45 V
OL
V
min = 1.35 V
OH
V
max = 0.45 V
OL
V
min = 1.35 V
OH
V
min = -0.3 V
IL
1.8 V power domain.
V
max = 0.63 V
IL
Can be configured to
V
min = 1.17 V
IH
GPIO.
V
max = 2.1 V
IH
If unused, keep them
V
max = 0.45 V
OL
open.
V
min = 1.35 V
OH
V
min = -0.3 V
IL
V
max = 0.63 V
IL
V
min = 1.17 V
IH
V
max = 2.1 V
IH
V
max = 0.45 V
OL
V
min = 1.35 V
OH
DC
Comment
Characteristics
V
max = 0.45 V
OL
V
min = 1.35 V
OH
V
min = -0.3 V
IL
V
max = 0.63 V
IL
V
min = 1.17 V
IH
V
max = 2.1 V
IH
V
max = 0.45 V
OL
1.8 V power domain.
V
min = 1.35 V
OH
Can be configured to
V
min = -0.3 V
IL
GPIO.
V
max = 0.63 V
IL
If unused, keep them
V
min = 1.17 V
IH
open.
V
max = 2.1 V
IH
V
min = -0.3 V
IL
V
max = 0.63 V
IL
V
min = 1.17 V
IH
V
max = 2.1 V
IH
V
max = 0.45 V
OL
V
min = 1.35 V
OH
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