Rainbow-electronics T89C51CC02 Manual do Utilizador descarregar pdf (Página 76)

76 Rev.A - May 17, 2001

Preliminary

T89C51CC02

15.7. 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.

Figure 62. Acceptance filter block diagram

example:

For accept only ID = 318h in part A.

ID MSK = 111 1111 1111 b

ID TAG = 011 0001 1000 b

13/32

RxDC

13/32

Write

13/32

Hit

13/32

ID MSK Registers (Ch i)

ID RTR IDE

Rx Shift Register (internal)

ID RTR IDE

Enable

(Ch i)

ID TAG Registers (Ch i) & CanConch

ID RTR

IDE

1 2 ... 71 72 73 74 75 76 77 78 79 80 81 ... 136 137

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Rainbow-electronics T89C51CC02 Manual do Utilizador Página 76