CM6533-N Datasheet, PDF (15/60 Pages) C-Media Electronics – USB 2.0 Full-Speed compliant

39
GPIO_3
38
GPIO_4
37
GPIO_5
41
GPIO_6
40
GPIO_7
35
GPIO_8
34
GPIO_9
33
GPIO_10
32
GPIO_11
43
SPI_MISO
44
SPI_MOSI
45
SPI_CS0
46
SPI_SCK
5
I2C_SDAT
CM6533,CM6533N,CM6533X1,CM6533DH
USB Audio Chip
General purpose input/output (default Rec Mute button).
DIO 3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input.
Programmable 2 in 1 I/O interface. GPIO / PWM select by firmware.
DIO
General purpose input/output (default PWM LED Blue).
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input.
Programmable 2 in 1 I/O interface. GPIO / PWM select by firmware.
DIO
General purpose input/output (default PWM LED Green).
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input.
Programmable 2 in 1 I/O interface. GPIO / PWM select by firmware.
DIO
General purpose input/output (default PWM LED Red).
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input. (JTAG-TRST)
General purpose input/output There are 4 kinds of preset EQ, GPIO7
(JTAG-TDO).
DIO
3.3V I/O, 5V tolerance,
bidirectional buffer with 8mA
and 8 are used to determine in which
mode. The combinations are shown
below.
driving current, Default EQ disable GPIO[8:7]=0,0: Normal mode
weak pull-up for input.
GPIO[8:7]=0,1: Gaming mode
General purpose input/output GPIO[8:7]=1,0: Communication mode
3.3V I/O, 5V tolerance,
GPIO[8:7]=1,1: Movie mode
DIO bidirectional buffer with 8mA
EQ function can enable via configuration
driving current, Default EQ disable tool or firmware.
weak pull-up for input.
General purpose input/output (default Rec Clip Indicator).
DIO 3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input.
Programmable 3 in 1 I/O interface. GPIO / Digital MIC Clock (DMIC_CLK) /
MCU_TRX select by firmware.
DIO GPIO (Default MIC Jack Detect):
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input.
Programmable 3 in 1 I/O interface. GPIO / Digital MIC Data (DMIC_DAT) /
UART RX input(MCU_RXD) select by firmware.
DIO GPIO (Default Headphone Jack Detect):
3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input.
4-Wire SPI Serial Bus
SPI data master in/slave out,
DIO 3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-down for input.
SPI data master out/slave in,
DIO 3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-down for input.
SPI chip select,
DIO 3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-up for input.
SPI clock,
DIO 3.3V I/O, 5V tolerance, bidirectional buffer with 8mA driving current,
Default weak pull-down for input.
2-Wire Serial Bus (I2C)
2-wire serial data,
DIO 3.3V I/O, 5V tolerant, bidirectional buffer with 8mA driving current, Default
weak pull-up for input.
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Rev.1.6
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