36.5.4 I2CxCON3

I2C Control Register 3

Name:	I2CxCON3
Address:	0x01E9


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

Bit 4 – BFREDR Bus Free Time Divider Ratio

Selects the divider ratio for Bus Free Time selection. See BFRET bits for more information.

Bits 3:2 – FME[1:0] Fast Mode Enable

Value	Description
`11`	Reserved
`10`	Fast Mode Plus (SCL frequency (F_SCL) = F_I2CxCLK/16)
`01`	Fast Mode (SCL frequency (F_SCL) = F_I2CxCLK/4)
`00`	Standard Mode (SCL frequency (F_SCL) = F_I2CxCLK/5)

Bits 1:0 – ACNTMD[1:0] ACNT Mode Selection

Value	Name	Description
`xx`	ACNT = `0`	ACNTMD bits ignored
`11`	ACNT = `1`	Reserved
`10`	ACNT = `1`	16 bits are loaded into I2CxCNT[15:0]
`01`	ACNT = `1`	8 bits are loaded into I2CxCNT[15:8]
`00`	ACNT = `1`	8 bits are loaded into I2CxCNT[7:0]

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