AT89C51CC03CA-7CTUM ATMEL [ATMEL Corporation], AT89C51CC03CA-7CTUM Datasheet - Page 117
AT89C51CC03CA-7CTUM
Manufacturer Part Number
AT89C51CC03CA-7CTUM
Description
Enhanced 8-bit MCU with CAN Controller and Flash Memory
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT89C51CC03CA-7CTUM.pdf
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4182K–CAN–05/06
Table 62. CANBT3 Register
CANBT3 (S:B6h)
CAN Bit Timing Registers 3
Note:
No default value after reset.
Number
Bit
6-4
3-1
7
7
0
-
The CAN controller bit timing registers must be accessed only if the CAN controller is dis-
abled with the ENA bit of the CANGCON register set to 0.
See Figure 52.
Bit Mnemonic Description
PHS2 2
PHS2 2:0
PHS1 2:0
SMP
6
-
PHS2 1
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Phase Segment 2
This phase is used to compensate for phase edge errors. This segment can
be shortened by the re-synchronization jump width.
Phase segment 2 is the maximum of Phase segment 1 and the Information
Processing Time (= 2TQ).
Phase Segment 1
This phase is used to compensate for phase edge errors. This segment can
be lengthened by the re-synchronization jump width.
Sample Type
0 - once, at the sample point.
1 - three times, the threefold sampling of the bus is the sample point and twice
over a distance of a 1/2 period of the Tscl. The result corresponds to the
majority decision of the three values.
5
PHS2 0
4
Tphs2 = Tscl x (PHS2[2..0] + 1)
Tphs1 = Tscl x (PHS1[2..0] + 1)
PHS1 2
3
PHS1 1
AT89C51CC03
2
PHS1 0
1
SMP
0
117
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