Datasheet

MSCAN Controller
Technical Data MC68HC912DT128A — Rev 4.0
334 MSCAN Controller MOTOROLA
Figure 18-5. 8-bit Maskable Acceptance Filters
The identifier acceptance registers (CIDAR0–7) define the acceptable
patterns of the standard or extended identifier (ID10–ID0 or ID28–ID0).
Any of these bits can be marked don’t care in the identifier mask
registers (CIDMR0–7).
A filter hit is indicated to the application software by a set RXF (receive
buffer full flag, see msCAN12 Receiver Flag Register (CRFLG)) and
ID28 ID21 ID20 ID15 ID14 ID7 ID6 RTR
ID10 ID3 ID2 IDE
AM7
IDR0
IDR0
IDR1
IDR1
IDR2 IDR3
AM0
AC7 AC0
CIDMRO
CIDARO
ID accepted (Filter 0 hit)
AM7 AM0
AC7 AC0
CIDMR1
CIDAR1
AM7 AM0
AC7 AC0
CIDMR2
CIDAR2
ID accepted (Filter 1 hit)
ID accepted (Filter 2 hit)
AM7
AM0
AC7 AC0
CIDMR3
CIDAR3
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