User manual

Preliminary
...the world's most energy friendly microcontrollers
2012-05-15 - TBD 16
www.energymicro.com
Figure 9.2. Expansion Header
VMCU
PD0
PD2
PD3
PD4
PD5
PD6
PD1
GND
PC0
PC4
PC5
PB11
PB12
PD7
PC3
PC6
GND
5V
3V3
1
3
7
9
11
13
15
5
17
19
2
4
8
10
12
14
16
6
18
20
Table 9.1. Some peripheral functions available on Expansion Header
Peripheral Peripheral pin MCU Pin EXP Header pin number
USART1_TX PD0 4
USART1_RX PD1 6
USART1_CLK PD2 8
USART/SPI
USART1_CS PD3 10
I2C1_SDA PC4 7I²C
I2C1_SCL PC5 9
LEUART0_TX PD4 12Low Energy UART
LEUART0_RX PD5 14
ADC0_CH0 PD0 4
ADC0_CH1 PD1 6
ADC0_CH2 PD2 8
ADC0_CH3 PD3 10
ADC0_CH4 PD4 12
ADC0_CH5 PD5 14
ADC0_CH6 PD6 16
Analog to Digital
Converter
ADC0_CH7 PD7 15
DAC0_CH0 PB11 11Digital to Analog
Converter
DAC0_CH1 PB12 13
ACMP0_CH0 PC0 3
ACMP0_CH3 PC3 5
ACMP0_CH4 PC4 7
ACMP0_CH5 PC5 9
ACMP0_CH6 PC6 17
ACMP0_O PD6 16
Analog Comparator
ACMP1_O PD7 15
Operational Amplifier OPAMP_N0 PC5 9