User's Manual

MXCHIP All Rights Reserved
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Datasheet [Page 9]
EMW3080
14 MICO_GPIO_14 MICO_PWM5
15 NC
16 VDD
17 GND
18 NC
19 MICO_GPIO_19
20 NC
21, 24 MICO_GPIO_21 MICO_I2C0_SDA MICO_UART1_TXD MICO_PWM4
22, 25 MICO_GPIO_22 MICO_I2C0_SCL MICO_UART1_RXD MICO_PWM5
23 MICO_GPIO_23
Illustration：words in black color is the common pins in both A and B, words in blue color is unique pins of
B module. Compare to A module, EMW3080(B) has four pins: PIN 7,8,9,10 with function: traffic control of
UART, SPI function,PWM output and GPIO.
PIN 19 is used as BOOT，PIN23 is used as EASYLINK, please do not use pin 19 and 23 in hardware 硬件
design. Please contact engineer of MXCHIP if it is necessary to use the two pins.
PIN21/24should be in high voltage or NC when power on,please aware it when designing circuit.
CHIP_EN could not be set NC, the other pins should not be set NC.