25.5.6 Control F


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

Bits 7:4 – INTDLY[3:0] Inter-byte Delay

These bits define the delay added after a frame before a next byte can be transmitted. The value of the bitfield directly corresponds to the added number of clock cycles of delay. The delay applies to all communication modes.

Bits 3:2 – GUARD[1:0] Guard Time

This bitfield is used to control the guard time when communication signals (CSIG in USARTn.CTRLA) is set to RS485.

For RS485 mode, the guard time is programmable from 0-3 bit times and defines the time that the transmit enable pin (AUX1) remains high before the next Start bit of the first response byte is transmitted.

Bits 1:0 – BRKLEN[1:0] Break Length

These bits define the length of the break field transmitted when the Frame Format (FORM) in Control C (USARTn.CTRLC) is set to LIN Host mode (LINHOST).

Value	Name	Description
0x00	13BIT	Break field transmission is 13 bit times
0x01	17BIT	Break field transmission is 17 bit times
0x02	21BIT	Break field transmission is 21 bit times
0x03	26BIT	Break field transmission is 26 bit times

Name:	CTRLF
Offset:	0x05
Reset:	0x00
Property:	-