ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 21 -
Revision 2.4
Pin No.
Pin Name
Pin Type Alt CFG Description
LQFP
64
CMP2
O
1
Compare 2 Output
I2S0_SDO
O
2
Serial Data Output for I2S interface
UART1_RX
I
3
Receive channel of UART 1
CS11
AI
Touch scan channel 11
SAR3
AI
SARADC channel 3
54
PB.12
I/O
0
General purpose input/output pin, analog capable; Port B, bit 12
SPI0_MISO0
I/O
1
1
st
Master In, Slave Out for SPI0 interface
SPI1_MOSI
I/O
2
Master Out, Slave In for SPI1 interface
DMIC_DAT
I
3
DMIC data
CS12
AI
Touch scan channel 12
SAR4
AI
SARADC channel 4
55
PB.13
I/O
0
General purpose input/output pin, analog capable; Port B, bit 13
SPI0_MOSI0
I/O
1
1
st
Master Out, Slave In for SPI0 interface
SPI1_SCLK
I/O
2
Serial Clock for SPI1 interface
SARADC_TRIG
I
3
SARADC Trigger
CS13
AI
Touch scan channel 13
SAR5
AI
SARADC channel 5
56
PB.14
I/O
0
General purpose input/output pin, analog capable; Port B, bit 14
SPI0_SCLK0
I/O
1
1
st
Serial Clock for SPI0 interface
SPI1_SSB
O
2
Slave Select Bar 1 for SPI1 interface
DMIC_CLK
O
3
DMIC clock
CS14
AI
Touch scan channel 14
SAR6
AI
SARADC channel 6
57
PB.15
I/O
0
General purpose input/output pin, analog capable; Port B, bit 15
SPI0_SSB0
O
1
Slave Select Bar 0 for SPI0 interface
SPI1_MISO
I/O
2
Master In, Slave Out for SPI1 interface
MCLK
O
3
Master clock output for synchronizing external device
CS15
AI
Touch scan channel 15
SAR7
AI
SARADC channel 7
58
VSSA
AP
Ground for analog circuitry.
59
VMID
O
Mid rail reference. Connect 4.7µF to VSSA.
60
MICP
AI
SDADC positive input
61
VSS_SARADC
AP
SARADC ground
62
MICN
AI
SDADC negative input
63
NC
64
MICBIAS
O
Microphone bias output.
Note:
1.
Pin Type I=Digital Input, O=Digital Output; AI=Analog Input; AO=Analog Output; P=Power Pin; AP=Analog Power