PIC18F2480/2580/4480/4580
REGISTER 24-53: BRGCON2: BAUD RATE CONTROL REGISTER 2
R/W-0
R/W-0
SAM
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
SEG2PHTS
SEG1PH2
SEG1PH1
SEG1PH0
PRSEG2
PRSEG1
PRSEG0
bit 7
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared x = Bit is unknown
bit 7
SEG2PHTS: Phase Segment 2 Time Select bit
1= Freely programmable
0= Maximum of PHEG1 or Information Processing Time (IPT), whichever is greater
bit 6
SAM: Sample of the CAN bus Line bit
1= Bus line is sampled three times prior to the sample point
0= Bus line is sampled once at the sample point
bit 5-3
SEG1PH<2:0>: Phase Segment 1 bits
111= Phase Segment 1 time = 8 x TQ
110= Phase Segment 1 time = 7 x TQ
101= Phase Segment 1 time = 6 x TQ
100= Phase Segment 1 time = 5 x TQ
011= Phase Segment 1 time = 4 x TQ
010= Phase Segment 1 time = 3 x TQ
001= Phase Segment 1 time = 2 x TQ
000= Phase Segment 1 time = 1 x TQ
bit 2-0
PRSEG<2:0>: Propagation Time Select bits
111= Propagation time = 8 x TQ
110= Propagation time = 7 x TQ
101= Propagation time = 6 x TQ
100= Propagation time = 5 x TQ
011= Propagation time = 4 x TQ
010= Propagation time = 3 x TQ
001= Propagation time = 2 x TQ
000= Propagation time = 1 x TQ
DS39637D-page 318
© 2009 Microchip Technology Inc.