Data Sheet

Beijing Eswin Technology Co.,Ltd
000 BOOTMODE0 BOOTMODE Select
001 GPIO14 General purpose use 14
010 TOUT2 External ADC input, please make sure
the ADC input voltage is within 3.3V,
the ADC input can only support 1.2V, if
the ADC input is 3.3V, please make
sure the ADC DIV is 4
011 TOUT2 External ADC input, please make sure
the ADC input voltage is within 3.3V,
the ADC input can only support 1.2V, if
the ADC input is 3.3V, please make
sure the ADC DIV is 4
100 PWM_CTRL3 Pulse Width Modulation 3
101 ATST_A Analog Test Port A
110 I2S_TXD Integrated Inter chip Sound Transmitter
111 UART2_RXD Universal Asynchronous Receiver
TOUT3
Truth table Function name Function
000 BOOTMODE1 BOOTMODE Select
Combine with Bootmode<0> and
Bootmode<1>, the truth table is:
00: Unknown
01: SDIO
10: UART
11: SPI Flash
001 GPIO15 General purpose use 15
010 TOUT3 External ADC input, please make sure
the ADC input voltage is within 3.3V,
the ADC input can only support 1.2V, if