mc9s12xs128 Freescale Semiconductor, Inc, mc9s12xs128 Datasheet - Page 335

• Manufacturer Part Number: mc9s12xs128
• Description: Hcs12 Microcontrollers 16-bit Automotive Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
Extended Identifier
Standard Identifier
CAN 2.0A/B
•
•
•
CAN 2.0B
Four identifier acceptance filters, each to be applied to:
— The 14 most significant bits of the extended identifier plus the SRR and IDE bits of CAN 2.0B
— The 11 bits of the standard identifier, the RTR and IDE bits of CAN 2.0A/B messages.
Eight identifier acceptance filters, each to be applied to the first 8 bits of the identifier. This mode
implements eight independent filters for the first 8 bits of a CAN 2.0A/B compliant standard
identifier or a CAN 2.0B compliant extended identifier.
Figure 11-42
CANIDMR0–CANIDMR3) produces filter 0 to 3 hits. Similarly, the second filter bank
(CANIDAR4–CANIDAR7, CANIDMR4–CANIDMR7) produces filter 4 to 7 hits.
Closed filter. No CAN message is copied into the foreground buffer RxFG, and the RXF flag is
never set.
Figure 11-40
CANIDMR0–CANIDMR3) produces a filter 0 hit. Similarly, the second filter bank
(CANIDAR4–CANIDAR7, CANIDMR4–CANIDMR7) produces a filter 1 hit.
messages.
Figure 11-41
CANIDMR0–3CANIDMR) produces filter 0 and 1 hits. Similarly, the second filter bank
(CANIDAR4–CANIDAR7, CANIDMR4–CANIDMR7) produces filter 2 and 3 hits.
AM7
AC7
ID28
ID10
shows how the first 32-bit filter bank (CANIDAR0–CANIDAR3,
CANIDMR0
CANIDAR0
IDR0
IDR0
Figure 11-40. 32-bit Maskable Identifier Acceptance Filter
shows how the first 32-bit filter bank (CANIDAR0–CANIDAR3,
shows how the first 32-bit filter bank (CANIDAR0–CANIDA3,
AM0
ID21
AC0
ID3
S12XS Family Reference Manual Rev. 1.10
AM7
AC7
ID20
ID2
CANIDMR1
CANIDAR1
IDR1
IDR1
ID Accepted (Filter 0 Hit)
IDE
AM0
ID15
AC0
Freescale’s Scalable Controller Area Network (S12MSCANV3)
AM7
AC7
ID14
ID10
CANIDMR2
CANIDAR2
IDR2
IDR2
AM0
AC0
ID7
ID3
AM7
AC7
ID6
ID10
CANIDMR3
CANIDAR3
IDR3
IDR3
AM0
AC0
RTR
ID3
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