Realtek Ameba RTL8195AM DEV01, Руководство пользователя

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Document Number: UM0058
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October 6, 2016 6
5 Peripherals support
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Debug UART: GPIOB_[0..1]

JTAG: GPIOE_[0..4]
5.1 Pin function table setup

Multiple functions are supported by group setup.

For example: GPIOA_6(Rx), GPIOA_7(Tx), GPIOA_3(RTS) and
GPIOA_5(CTS) are used if UART0 function. GPIOA_3(RTS) and
GPIOA_5(CTS) can not be used as other functions.

For example: GPIOC_0, GPIOC_1, GPIOC_2, GPIOC_2, GPIOC_3 are
used if PWM is occupied. GPIOC_1(PWM1) and GPIOC_2(PWM2) can
not be used as other functions.
NOTE1: PH = Pull-High, HI = High-impedance
NOTE2: GPIOA_1 needs external Circuit to do the pull high control; others’ pull
control can be done by register setting (including GPIOA_1’s PD).
JTAG
Debug console
I2S
PWM
SDIO
UART
UART
I2C
SPI
SPI