Microcontroller
Peripheral Timing
Calculator

Philips XA-C3
CAN hardware acceptance filter

Standard Frames (11-bit)

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Reminder:
Binary to Hex table
0000b = 0h
0001b = 1h
0010b = 2h
0011b = 3h
0100b = 4h
0101b = 5h
0110b = 6h
0111b = 7h
1000b = 8h
1001b = 9h
1010b = Ah
1011b = Bh
1100b = Ch
1101b = Dh
1110b = Eh
1111b = Fh

Code(match) register MnMIDH and MnMIDL, mask register MnMSKH and MnMSHL

Enter the desired filter bit pattern for the 11-bit ID and the first two data bytes, then hit the "Calculate" button. The results are given in binary, grouped into 4 bits allowing for easy translation to hexadecimal.

ID.28 (ID.10)	ID.27 (ID.9)	ID.26 (ID.8)	ID.25 (ID.7)	ID.24 (ID.6)	ID.23 (ID.5)	ID.22 (ID.4)	ID.21 (ID.3)	ID.20 (ID.2)	ID.19 (ID.1)	ID.18 (ID.0)
		_]	[_			_]	[_			_]
			DB1.7	DB1.6	DB1.5	DB1.4	DB1.3	DB1.2	DB1.1	DB1.0
			[_			_]	[_			_]
			DB2.7	DB2.6	DB2.5	DB2.4	DB2.3	DB2.2	DB2.1	DB2.0
			[_			_]	[_			_]

NOTE: During arbitartion, the identifiers are compared with the most significant bits firsts. If a 29-bit ID gets compared to an 11-bit ID, these 11-bits are compared to the 11 most significant bits of the 29-bit ID (bit 18 to 28).

The entries above require the following settings for the code(match) registers and the mask registers:

Code(match) register MnMIDH
Code(match) register MNMIDL
Mask register MnMSKH
Mask register MnMSKL

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� ESAcademy, 2000
Author: Olaf Pfeiffer

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Microcontroller Peripheral Timing Calculator

Philips XA-C3 CAN hardware acceptance filter

Standard Frames (11-bit)

Code(match) register MnMIDH and MnMIDL, mask register MnMSKH and MnMSHL

Microcontroller
Peripheral Timing
Calculator

Philips XA-C3
CAN hardware acceptance filter