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PIC18F44800TE/ML Datasheet(PDF) 278 Page - Microchip Technology

Part # PIC18F44800TE/ML
Description  28/40/44-Pin Enhanced Flash Microcontrollers with ECAN Technology, 10-Bit A/D and nanoWatt Technology
PDF  484 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC18F44800TE/ML Datasheet(HTML) 278 Page - Microchip Technology

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PIC18F2480/2580/4480/4580
DS39637A-page 276
Preliminary
 2004 Microchip Technology Inc.
REGISTER 23-1:
CANCON: CAN CONTROL REGISTER
Mode 0
R/W-1
R/W-0
R/W-0
R/S-0
R/W-0
R/W-0
R/W-0
U-0
REQOP2
REQOP1
REQOP0
ABAT
WIN2
WIN1
WIN0
—
Mode 1
R/W-1
R/W-0
R/W-0
R/S-0
U-0
U-0
U-0
U-0
REQOP2
REQOP1
REQOP0
ABAT
—
—
—
—
Mode 2
R/W-1
R/W-0
R/W-0
R/S-0
R-0
R-0
R-0
R-0
REQOP2
REQOP1
REQOP0
ABAT
FP3
FP2
FP1
FP0
bit 7
bit 0
bit 7-5
REQOP2:REQOP0: Request CAN Operation Mode bits
1xx
= Request Configuration mode
011
= Request Listen Only mode
010
= Request Loopback mode
001
= Request Disable mode
000
= Request Normal mode
bit 4
ABAT: Abort All Pending Transmissions bit
1
= Abort all pending transmissions (in all transmit buffers)
0
= Transmissions proceeding as normal
bit 3-1
Mode 0:
WIN2:WIN0: Window Address bits
This selects which of the CAN buffers to switch into the access bank area. This allows access
to the buffer registers from any data memory bank. After a frame has caused an interrupt, the
ICODE3:ICODE0 bits can be copied to the WIN3:WIN0 bits to select the correct buffer. See
Example 23-2 for a code example.
111
= Receive Buffer 0
110
= Receive Buffer 0
101
= Receive Buffer 1
100
= Transmit Buffer 0
011
= Transmit Buffer 1
010
= Transmit Buffer 2
001
= Receive Buffer 0
000
= Receive Buffer 0
bit 0
Unimplemented: Read as ‘0’
bit 4-0
Mode 1:
Unimplemented: Read as ‘0’
Mode 2:
FP3:FP0: FIFO Read Pointer bits
These bits point to the message buffer to be read.
0111:0000
= Message buffer to be read
1111:1000
= Reserved
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



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