Product Info

©Ehong Technology Co.,Ltd Page 7 of 14
11
PB0
GPIO
PWM5_O
TX_EN_I
TX_CYC2PA
HSPI_HOLD_N
_IO
lp_comp<0>/
sar_in<0>
12
PB1
GPIO
PWM3_O
TX_ON_I
RX_CYC2LNA
CODEC_IRQ_O/
HSPI_WP_N_IO
lp_comp<1>/
sar_in<1>
13
PB2
GPIO
UART0_T
X_O
DAC_I_DAT2_I
I2C_SCK_IO
DMIC_DAT_I/
HSPI_DI_IO
lp_comp<2>/
sar_in<2>
14
PB3
GPIO
TX_DAT0_
I
UART0_RTX_I
O/DAC_I_DAT3
_I
I2C_SDA_IO
DMIC_CLK1_O/
HSPI_DO_IO
p_comp<3>/
sar_in<3>
15
PB4
GPIO
TX_DAT2_
I
UART0_RTS_O
/
DAC_I_DAT4_I
PWM0
DMIC_CLK2_O/
HSPI_CK_IO
lp_comp<4>/
sar_in<4>
16
PB5
GPIO
TX_DATA_
VAL
PWM1_O/
DAC_I_DAT5_I
CLK
CODEC_MCLK_I/
ATSEL[0]
lp_comp<5>/
sar_in<5>
17
PB6
GPIO
RATE0_I
UART0_CTS_I/
DAC_I_DAT6_I
MISO_IO1
TX_CYC2PA_O/
HSPI_CN_IO
lp_comp<6>/
sar_in<6>
18
GND
GND
-
-
-
-
-
19
GND
GND
-
-
-
-
-
20
VBAT
3.3V
-
-
-
-
-
21
PC2
GPIO
ADC_I_DA
T0
DMIC_CLK1_O/
DAC_Q_DAT2_
I
ATSEL[1]
I2C_SDA_IO
-
22
PC1
GPIO
DMIC_DA
T_I-
TX_CLK
ATSEL[0]
I2C_SCK_IO
-
23
PC0
GPIO
PWM0_O
RX_EN_I
CSN
SWM_IO
-
24
PD2
GPIO
PWM2_N
ADC_I_DAT4
MISO_IO1
UART0_TX
-
25
PD3
GPIO
PWM3_N_
O
ADC_I_DAT5
MOSI_IO0
UART0_RTX_IO
-
26
RES
ET
RESET
-
-
-
-
-
27
GND
GND
-
-
-
-
-
28
RF
-
-
-
-
-
-
Notice:
1. General-purpose input/output; support wake-up function. All are internal pull-up and pull-down
circuits.
2. The IO voltage range is 1.8V~3.6V, and the typical value is 3.3V.
3. For debugging, it is recommended to keep SWS test points.
4. If used with MCU chip, it is recommended to connect the reset pin.