ISD94100 Series Technical Reference Manual
Sep 9, 2019
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Pins
Pin Name
Type MFP
Description
QFN48
(6x6)
LQFP64
(7x7)
LQFP64
(10x10)
DMIC_DAT0
I
MFP5
Digital microphone channel 0 data input pin.
8
8
8
PB.6
I/O
MFP0 General purpose digital I/O pin.
XT1_IN
I
MFP1 External 4~24.576 MHz (high speed) crystal input pin.
PWM0_CH2
I/O
MFP2 PWM0 channel2 output/capture input.
I2C0_SCL
I/O
MFP4 I2C0 serial clock pin.
I2C1_SCL
I/O
MFP5 I2C1 serial clock pin.
DMIC_CLK0
O
MFP6 Digital microphone channel 0 clock output pin.
9
9
PB.7
I/O
MFP0 General purpose digital I/O pin.
UART0_nRTS
O
MFP1 Request to Send output pin for UART0.
PWM0_CH3
I/O
MFP2 PWM0 channel3 output/capture input.
10
10
PB.8
I/O
MFP0 General purpose digital I/O pin.
UART0_TXD
O
MFP1 UART0 Data transmitter output pin.
PWM0_CH4
I/O
MFP2 PWM0 channel4 output/capture input.
11
11
PB.9
I/O
MFP0 General purpose digital I/O pin.
UART0_RXD
I
MFP1 UART0 Data receiver input pin.
PWM0_CH5
I/O
MFP2 PWM0 channel5 output/capture input.
9
12
12
LDO_CAP
P
MFP0 LDO output pin.
Note: This pin needs to be connected with a 1uF
capacitor.
10
13
13
VSS
P
MFP0 Ground pin for digital circuit.
11
14
14
AVSS
P
MFP0 Ground pin for analog circuit.
12
15
15
VDD
P
MFP0 Power supply for I/O ports and LDO source for internal
PLL and digital circuit.
13
16
16
AVDD
P
MFP0 Power supply for internal analog circuit.
14
17
17
PC.0
I/O
MFP0 General purpose digital I/O pin.
I2C1_SCL
I/O
MPF1 I2C1 clock pin.
X32_OUT
O
MFP2 External 32.768 kHz (low-speed) crystal output pin.
SPI1_MOSI
I/O
MFP3 SPI1 MOSI (Master Out, Slave In) pin; or I2S1 data
output pin.
15
18
18
PC.1
I/O
MFP0 General purpose digital I/O pin.
I2C1_SDA
I/O
MFP1 I2C1 data input/output pin.
X32_IN
I
MFP2 External 32.768 kHz (low-speed) crystal input pin.
SPI1_MISO
I/O
MFP3 SPI1 MISO (Master In, Slave Out) pin; or I2S1 data
input pin.
16
19
19
PC.2
I/O
MFP0 General purpose digital I/O pin.
I2C1_SMBSUS
O
MFP1 I2C1 SMBus SMBSUS# pin (PMBus CONTROL pin)
TM3
I/O
MFP2 Timer3 event counter input / toggle output.