Protocol Violation Protection; Bit Maskable Identifier Acceptance Filters - Freescale Semiconductor MPC5200B User Manual

CAN 2.0B
Extended Identifier ID28
CAN 2.0A/B
ID10
Standard Identifier
AM7 CIDMR0
AC7 CIDAR0
AM7 CIDMR1
AC7 CIDAR1
AM7 CIDMR2
AC7 CIDAR2
AM7 CIDMR3
AC7 CIDAR3
19.7.4

Protocol Violation Protection

The MSCAN protects the user from accidentally violating the CAN protocol through programming errors. The protection logic implements
the following features:
• The receive and transmit error counters cannot be written or otherwise manipulated.
Freescale Semiconductor
IDR0 ID21 ID20 IDR1
IDR0 ID3 ID2 IDR1
AM0
AC0
ID Accepted (Filter 0 Hit)
AM0
AC0
ID Accepted (Filter 1 Hit)
AM0
AC0
ID Accepted (Filter 2 Hit)
AM0
AC0
ID Accepted (Filter 3 Hit)
Figure 19-6. 8-bit Maskable Identifier Acceptance Filters
MPC5200B Users Guide, Rev. 1
ID15 ID14 IDR2
IDE ID10 IDR2
Functional Description
ID7 ID6 IDR3 RTR
ID3 ID10 IDR3 ID3
19-31