STA8089FGA datasheet(10/33 Pages) STMICROELECTRONICS

10 / 33 page

Pin description

STA8089FGA

10/33

DocID029680 Rev 2

2.6

Communication interface pins

TRSTn

VDDIO_R2

JTAG Test Circuit Reset

TP_IF_N

1.2 V

Diff.Test Point for IF - Neg.

TP_IF_P

1.2 V

Diff.Test Point for IF - Pos.

Table 3. Test/emulated dedicated pins (continued)

Symbol

I/O voltage

I/O

Description

STA8089FGA

Table 4. Communication interface pins

Symbol

I/O voltage

I/O

Alternative

function

Function

Description

STA8089FGA

CAN0_RX

VDDIO_R2

AF0

(default)

CAN0_RX

CAN0 receive data input

AF1

UART0_RX

UART0 Rx data

I/O

AF2

TSENSE

External temperature capture

port

I/O

AF3

I2C_SD

I2C serial data

CAN0_TX

VDDIO_R2

AF0

(default)

CAN0_TX

CAN0 transmit data output

AF1

UART0_TX

UART0 Tx data

I/O

AF2

GPIO7

General purpose I/O #7

AF3

I2C_CLK

I2C clock

CAN1_RX

VDDIO_R2

I/O

AF0

I2C_SD

I2C serial data

I/O

AF1

GPIO9

General purpose I/O #9

AF2

(default)

CAN1_RX

CAN1 receive data input

I/O

AF3

SPI_CSN

SPI chip select active low

CAN1_TX

VDDIO_R2

AF0

I2C_CLK

I2C clock

I/O

AF1

GPIO8

General purpose I/O #8

AF2

(default)

CAN1_TX

CAN1 transmit data output

AF3

SPI_CLK

SPI clock

SPI_CLK

VDDIO_R1

AF0

(default)

SPI_CLK

SPI clock

I/O

AF1

GPIO25

General purpose I/O #25

AF2

SQI_CLK

SQI Flash clock

AF3

Reserved

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