mc68hc05x4dw Freescale Semiconductor, Inc, mc68hc05x4dw Datasheet - Page 87

• Manufacturer Part Number: mc68hc05x4dw
• Description: Xc68hc705x4 Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MCAN
acceptance mask
register (CACM)
19-mcan
NOTE:
Address:
The acceptance mask register specifies which of the corresponding bits
in the acceptance code register are relevant for acceptance filtering.
This register can be accessed only when the RR bit in CCNTRL is set.
AM0 – AM7 — Acceptance mask bits
Reset:
When a particular bit in this register is clear this indicates that the
corresponding bit in the acceptance code register must be the same
as its identifier bit, before a match will be detected. The message will
be accepted if all such bits match. When a bit is set, it indicates that
the state of the corresponding bit in the acceptance code register will
not affect whether or not the message is accepted.
Freescale Semiconductor, Inc.
For More Information On This Product,
1 = Ignore corresponding acceptance code register bit.
0 = Match corresponding acceptance code register and identifier
$0025
AM7
Bit 7
bits.
Figure 9. MCAN Acceptance Mask (CACM)
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AM6
6
Motorola CAN
AM5
5
AM4
4
Undefined
AM3
Interface to the MC68HC05X4 CPU
3
AM2
2
MC68HC05X4 Rev 1.0
AM1
1
Motorola CAN
AM0
Bit 0