ST72344S2 datasheet(182/247 Pages) STMICROELECTRONICS

182 / 247 page

On-chip peripherals

ST72344xx, ST2345xx

182/247

Doc ID 12321 Rev 6

I2C slave 1 address register (I2C3SSAR1)

Reset value: 0000 0000 (00h)

Bits 7:1 = ADDR[7:1] Address of Slave 1

This register contains the first 7 bits of Slave 1 address (excluding the LSB) and is user

programmable. It is also cleared by hardware when the interface is disabled (PE =0).

Bit 0= EN1 Enable bit for Slave Address 1

This bit is used to enable/disable Slave Address 1. It is also cleared by hardware when

the interface is disabled (PE =0).

0: Slave Address 1 disabled

1: Slave Address 1 enabled

I2C slave 2 address register (I2C3SSAR2)

Reset value: 0000 0000 (00h)

Bits 7:1 = ADDR[7:1] Address of Slave 2.

This register contains the first 7 bits of Slave 2 address (excluding the LSB) and is user

programmable. It is also cleared by hardware when the interface is disabled (PE =0).

Bit 0= EN2 Enable bit for Slave Address 2

This bit is used to enable/disable Slave Address 2. It is also cleared by hardware when

the interface is disabled (PE =0).

0: Slave Address 2 disabled

1: Slave Address 2 enabled

I2C slave 3 address register (I2C3SSAR3)

Reset value: 0000 0000 (00h)

Bit 7:1 = ADDR[7:1] Address of Slave 3

This register contains the first 7 bits of Slave 3 address (excluding the LSB) and is user

programmable. It is also cleared by hardware when the interface is disabled (PE =0).

Bit 0= EN3 Enable bit for Slave Address 3

This bit is used to enable/disable Slave Address 3. It is also cleared by hardware when

the interface is disabled (PE =0).

0: Slave Address 3 disabled

1: Slave Address 3 enabled

ADDR7

ADDR6

ADDR5

ADDR4

ADDR3

ADDR2

ADDR1

EN1

Read / Write

ADDR7

ADDR6

ADDR5

ADDR4

ADDR3

ADDR2

ADDR1

EN2

Read / Write

ADDR7

ADDR6

ADDR5

ADDR4

ADDR3

ADDR2

ADDR1

EN3

Read / Write

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