APM32F003F4P6-R datasheet(18/56 Pages) GEEHY

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or slave mode, supports 7-bit and 10-bit addressing, and allows connection to

standard (up to 100kHz) or fast (up to 400kHz) I2C bus. I2C can receive and

send data, convert serial data into parallel data when receiving, and convert

parallel data into serial data when sending.

I2C bus functions are as follows:

Table 8 I2C bus function

Name

description

I2C main function

Generate start and end clocks

I2C slave function

Programmable I2C address detection

Stop bit detection

I2C Other functions

General generation and detection of 7-bit /10-bit addressing

Support different communication rates:

Standard speed (up to 100KHz)

Fastest speed (up to 400KHz)

4.9.3.

Serial peripheral interface (SPI)

Embedded with an SPI interface, it allows the chip to communicate with external

devices in half/full duplex serial mode. It can be configured as master mode or

slave mode, with 8 bits per frame. Full-duplex and half-duplex communication

rates can support 8 Mbit/s. SPI interface has wake-up function.

Table 9 Characteristics of serial peripheral interface

Characteristics

description

Maximum speed

Master/slave 8Mbit/s(fMASTER/2)

Full duplex synchronous

transmission

Synchronous transmission is transmitted on two data lines with or

without bidirectional transmission

Master-slave operation with two

choices

Hardware or software

CRC calculation

Tx and Rx buffers

1 byte

Slave/master select input pin

Analog/digital converter (ADC)

ADC is a 12-bit successive comparison analog-to-digital converter, which can

provide 8 multifunctional external input channels and 1 internal channel.

channels AIN0~AIN7 come from IO channel, while channel AIN8 comes from

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