
2010 Microchip Technology Inc.
DS21801F-page 43
MCP2515
REGISTER 5-3:
CNF3 - CONFIGURATION 1 (ADDRESS: 28h)
R/W-0
U-0
R/W-0
SOF
WAKFIL
—
PHSEG22
PHSEG21
PHSEG20
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
bit 7
SOF: Start-of-Frame signal bit
If CANCTRL.CLKEN = 1:
1
= CLKOUT pin enabled for SOF signal
0
= CLKOUT pin enabled for clockout function
If CANCTRL.CLKEN = 0, Bit is don’t care.
bit 6
WAKFIL: Wake-up Filter bit
1
= Wake-up filter enabled
0
= Wake-up filter disabled
bit 5-3
Unimplemented: Reads as ‘0’
bit 2-0
PHSEG2: PS2 Length bits<2:0>
(PHSEG2 + 1) x TQ
Minimum valid setting for PS2 is 2 TQ