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FAQ0072

更新时间： 2024-11-13 14:57:47

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描述
AT32F413/AT32F415/AT32F403A/AT32F407 在其他外设使用引脚时释放给TMR使用的条件？

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FAQ0072 数据手册

Alternate function pin release conditions

FAQ0072

Frequently Asked Questions

Alternate function pin release conditions

Questions:

For AT32F413/AT32F415/AT32F403A/AT32F407, under what conditions can these alternate function pins be

released for TMR?

Answer：

For example:

When the USART1 is being used, if the user wants to use the alternate function TMR1_CH1 on the

USART1_CK (PA8) pin, he needs to check the table below, where the “CK “ of USART is marked “YES”,

meaning that TMR1_CH1 can be used as alternate function while USART1 is in use, on the condition of

CLKEN=0.

Similarly, if the user wants to use the alternate function TMR1_CH2 on the USART1_TX (PA9) pin, he needs

to check the table below, where the “TX” of USART is marked “NO”, meaning that the TMR1_CH2 cannot be

used as alternate function while USART1 is working.

AT32F413xx/AT32F415xx/AT32F403Axx/AT32F407xx:

Alternate function pin release rule

OUTPUT

Can AT32 be released?

(Judge: Whether the TIMER can be output after

Release conditions

release)

SPI

SCK

MCK

MOSI/I2S_SD

MISO

NSS

YES

Release when MCKOE=0

SDIO

CMD

Release in one-bit bus mode

Release when bus width is in non-8-bit bus

mode

YES

Release when bus width is in non-8-bit bus

mode

Release when bus width is in non-8-bit bus

mode

Release when bus width is in non-8-bit bus

mode

USART

I2C

YES

Release when CLKEN=0

RTS

Release when RTSE=0

SCL

SDA

SMBA

SPIM_SCK

SPIM_CS

SPIM_IO0

SPIM_IO1

YES

Release when PERMODE=0 (I2C mode)

SPIM

2022.2.17

Rev 2.0.0

www.arterytek.com

12 3 4 5

中文翻译

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