37.5.18 I2CxADR1

I2C Address 1 Register

Note:

The ‘11110’ bit pattern used in the 10-bit address high byte is defined by the I²C Specification. It is up to the user to define these bits. These bit values are compared to the received address by hardware to determine a match. The bit pattern transmitted by the host must be the same as the client address’s bit pattern used for comparison or a match will not occur.

Name:	I2CxADR1
Address:	0x28F, 0x2A6


Bit	7	6	5	4	3	2	1	0
	ADR[6:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	1	1	1	1	1	1	1

Bits 7:1 – ADR[6:0] I2C Client Address 1

Name	Description
7-bit Client/Multi-Host modes (MODE = `000` or `110`):	7-bit client address 1
7-bit Client/Multi-Host modes with Masking (MODE = `011` or `111`):	7-bit client address mask for I2CxADR0
10-bit Client mode (MODE = `010`):	ADR[7:3]: Bit pattern (`11110`) as defined by the I²C Specification⁽¹⁾ ADR[2:1]: Two Most Significant bits of first 10-bit address
10-bit Client mode with Masking (MODE = `011`):	ADR[7:3]: Bit pattern (`11110`) as defined by the I²C Specification⁽¹⁾ ADR[2:1]: Two Most Significant bits of 10-bit address

The ‘11110’ bit pattern used in the 10-bit address high byte is defined by the I2C Specification. It is up to the user to define these bits. These bit values are compared to the received address by hardware to determine a match. The bit pattern transmitted by the host must be the same as the client address’s bit pattern used for comparison or a match will not occur.