Datasheet

89
A/T89C51CC01
4129N–CAN–03/08
Acceptance Filter Upon a reception hit (i.e., a good comparison between the ID+RTR+RB+IDE received
and an ID+RTR+RB+IDE specified while taking the comparison mask into account) the
ID+RTR+RB+IDE received are written over the ID TAG Registers.
ID => IDT0-29
RTR => RTRTAG
RB => RB0-1TAG
IDE => IDE in CANCONCH register
Figure 50. Acceptance filter block diagram
example:
To accept only ID = 318h in part A.
ID MSK = 111 1111 1111 b
ID TAG = 011 0001 1000 b
13/32
=
13/32
RxDC
13/32
Write
13/32
1
Hit
13/32
ID MSK Registers (Ch i)
ID and RB RTR IDE
Rx Shift Register (internal)
ID and RB RTR IDE
Enable
(Ch i)
ID TAG Registers (Ch i) and CanConch
ID and RB RTR
IDE