STR710FZ1 datasheet(27/78 Pages) STMICROELECTRONICS

27 / 78 page

STR71xF

System architecture

27/78

P0.0/S0.MISO

/U3.TX

I/O

4mA

Port 0.0

SPI0 Master

in/Slave out

data

UART3 Transmit data

output

Note: Programming AF function selects

UART by default. BSPI must be

enabled by SPI_EN bit in the BOOTCR

P0.1/S0.MOSI

/U3.RX

I/O

CT X4mA X

Port 0.1

BSPI0: Master

out/Slave in

data

UART3: Receive Data

input

Note: Programming AF function selects

UART by default. BSPI must be

enabled by SPI_EN bit in the BOOTCR

P0.2/S0.SCLK

/I1.SCL

I/O

CT X4mA X

Port 0.2

BSPI0: Serial

Clock

I2C1: Serial clock

Note: Programming AF function selects

I2C by default. BSPI must be enabled

by SPI_EN bit in the BOOTCR register.

55 C6

P0.3/S0.SS/I1

.SDA

I/O

4mA

Port 0.3

SPI0: Slave

Select input

active low.

I2C1: Serial Data

Note: Programming AF function selects

I2C by default. BSPI must be enabled

by SPI_EN bit in the BOOTCR register.

B5 P0.4/S1.MISO I/O

4mA

Port 0.4

SPI1: Master in/Slave out data

A4 VSS18

Stabilization for main voltage regulator.

58 C5 V18

Stabilization for main voltage regulator. Requires

external capacitors of at least 10µF + 33nF

between V18 and VSS18. See Figure 5.

B4 VSS

Ground voltage for digital I/Os

A3 P0.5/S1.MOSI I/O

4mA

Port 0.5

SPI1: Master out/Slave In data

61 D5 P0.6/S1.SCLK I/O

CT X 4mA X

Port 0.6

SPI1: Serial Clock

B3 P0.7/S1.SS

I/O

4mA

Port 0.7

SPI1: Slave Select input active low

Table 7.

STR711/STR712/STR715 pin description

Pin n°

Pin name

Input

Output

Main

function

(after

reset)

Alternate function

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STR710FZ1 数据表(PDF) 27 Page - STMicroelectronics

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