ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 18 -
Revision 2.4
Pin No.
Pin Name
Pin Type Alt CFG Description
LQFP
64
SPI1_SSB
O
3
Slave Select Bar for SPI1 interface
14
PA.7
I/O
0
General purpose input/output pin; Port A, bit 7
UART0_RX
I
1
Receive channel of UART 0
I2C0_SCL
I/O
2
Serial Clock, I2C interface
SPI1_MISO
I
3
Master In, Slave Out for SPI1 interface
15
VSSD
P
Digital Ground.
16
NC
17
NC
18
NC
19
VCCSPK
P
Power Supply for PWM Speaker Driver
20
SPKP
O
Positive Speaker Driver Output
21
VSSSPK
P
Ground for PWM Speaker Driver
22
VSSSPK
P
Ground for PWM Speaker Driver
23
SPKN
O
Positive Speaker Driver Output
24
VCCSPK
P
Power Supply for PWM Speaker Driver
25
NC
26
PA.8
I/O
0
General purpose input/output pin; Port A, bit 8
I2C0_SDA
I/O
1
Serial Data, I2C interface
UART1_TX
O
2
Transmit channel of UART 1
UART0_RTS
O
3
UART 0 Request to Send Output.
27
PA.9
I/O
0
General purpose input/output pin; Port A, bit 9
I2C0_SCL
I/O
1
Serial Clock, I2C interface
UART1_RX
I
2
Receive channel of UART 1
UART0_CTS
I
3
UART 0 Clear to Send Input.
28
I2C0_SCL
I/O
3
Serial Clock, I2C interface
PA.12
I/O
0
General purpose input/output pin; Port A, bit 12
PWM0CH2
O
1
PWM0CH2 Output.
XI12M
I
2
12MHz Crystal Oscillator Input. Max Voltage 1.8V
29
PA.13
I/O
0
General purpose input/output pin; Port A, bit 13
PWM0CH3
O
1
PWM0CH3 Output.
XO12M
O
2
12MHz Crystal Oscillator Output
I2C0_SCL
I/O
3
Serial Clock, I2C interface
30
PA.14
I/O
0
General purpose input/output pin; Port A, bit 14
UART1_TX
O
1
Transmit channel of UART 1
DMIC_CLK
IO
2
DMIC clock
XI32K
I
3
32.768kHz Crystal Oscillator Input. Max Voltage 1.8V