CM6631A Datasheet, PDF (12/16 Pages) C-Media Electronics – USB 2.0 High-Speed True HD Audio Processor

CM6631A
USB 2.0 High-Speed True HD Audio Processor
80
XPEE_A14
81
XPEE_A15
DIO
Parallel EEPROM/FLASH address 14
Programmable 3.3V bidirectional buffer, pull-down
DIO
Parallel EEPROM/FLASH address 15
Programmable 3.3V bidirectional buffer, pull-down
GPI
12
XGPI_0
13
XGPI_1
14
XGPI_2
15
XGPI_3
16
XGPI_4
17
XGPI_5
DIO
General purpose input 0
Programmable 3.3V input buffer, Schmitt trigger, pull-down
DIO
General purpose input 1
Programmable 3.3V input buffer, Schmitt trigger, pull-down
DIO
General purpose input 2
Programmable 3.3V input buffer, Schmitt trigger, pull-down
DIO
General purpose input 3
Programmable 3.3V input buffer, Schmitt trigger, pull-down
DIO
General purpose input 4
Programmable 3.3V input buffer, Schmitt trigger, pull-down
DIO
General purpose input 5
Programmable 3.3V input buffer, Schmitt trigger, pull-down
GPIO
54
XGPIO_7
49
XGPIO_8
50
XGPIO_9
51
XGPIO_10
52
XGPIO_11
58
XGPIO_12
59
XGPIO_13
60
XGPIO_14
62
XGPIO_15
DIO
General purpose input/output 0 (default output).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 1 (default output).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 2 (default output).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 3 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 4 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 5 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 6 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 6 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
General purpose input/output 6 (default input).
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
MIDI Interface
22
XD0
23
XD1
DIO
MIDI RXD, Serial input port
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
DIO
MIDI TXD, Serial output port
Programmable 3.3V/5V tolerance bidirectional buffer, pull-down
High-Definition Audio Interface
24
XHDA_BCLK
25
XHDA_SDI
26
XHDA_SYNC
27
XHDA_RST
28
XHDA_SDO
DO
HDA link bit clock (24MHz)
Programmable 3.3V output buffer
DI
HDA link serial data in
Programmable 3.3V bidirectional buffer, pull-down
DO
HDA link frame synchronization
Programmable 3.3V output buffer
DO
HDA link reset signal, active low
Programmable 3.3V output buffer
DO
HDA link serial data out
Programmable 3.3V output buffer
2-channel I2S DAC_2 Interface (PDMA_C)
85
X2DAC_MCLK
86
X2DAC_LRCK
DO
I2S master clock
Programmable 3.3V output buffer
DIO
I2S left/right clock
Programmable 3.3V bidirectional buffer, pull-down
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