EM3591-RTR datasheet(40/59 Pages) SILABS

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EM359x

Rev 1.0

PD2

I/O

Digital I/O

SC3MISO

SPI master data in of Serial Controller 3

Select SPI with SC3_MODE

Select master with SC3_SPICFG

SC3MOSI

SPI slave data in of Serial Controller 3

Select SPI with SC3_MODE

Select slave with SC3_SPICFG

SC3SCL

I/O

TWI clock of Serial Controller 3

Select TWI with SC3_MODE

Select alternate open-drain output function with GPIO_PDCFGL[11:8]

SC3RXD

UART receive data of Serial Controller 3

Select UART with SC3_MODE

PD3

I/O

Digital I/O

SC3nCTS

UART CTS handshake of Serial Controller 3

Enable with SC3_UARTCFG[5]

Select UART with SC3_MODE

SC3SCLK

SPI master clock of Serial Controller 3

Enable master with SC3_SPICFG[4]

Select SPI with SC3_MODE

Select alternate output function with GPIO_PDCFGL[15:12]

SC3SCLK

SPI slave clock of Serial Controller 3

Enable slave with SC3_SPICFG[4]

Select SPI with SC3_MODE

Table 6.1. EM359x Pin Descriptions (Continued)

Pin #

Signal

Direction

Description

Note:

IRQC and IRQD external interrupts can be mapped to any digital I/O pin using the GPIO_IRQCSEL and

GPIO_IRQDSEL registers.

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EM3591-RTR 数据表(PDF) 40 Page - Silicon Laboratories

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