CSM9S12XDT512SLK Freescale Semiconductor, CSM9S12XDT512SLK Datasheet - Page 461

Manufacturer Part Number

CSM9S12XDT512SLK

KIT STUDENT LEARNING 16BIT

Manufacturer

Freescale Semiconductor

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Freescale Semiconductor

Extended Identiﬁer

Standard Identiﬁer

Four identiﬁer acceptance ﬁlters, each to be applied to

— a) the 14 most signiﬁcant bits of the extended identiﬁer plus the SRR and IDE bits of CAN 2.0B

— b) 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.

ﬁlter bank (CANIDAR0–CANIDAR3, 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

Figure 10-41

CANIDMR0–3CANIDMR) produces ﬁlter 0 and 1 hits. Similarly, the second ﬁlter bank

(CANIDAR4–CANIDAR7, CANIDMR4–CANIDMR7) produces ﬁlter 2 and 3 hits.

Figure 10-40. 32-bit Maskable Identiﬁer Acceptance Filter

shows how the ﬁrst 32-bit ﬁlter bank (CANIDAR0–CANIDA3,

MC9S12XDP512 Data Sheet, Rev. 2.21

Chapter 10 Freescale’s Scalable Controller Area Network (S12MSCANV3)

ID Accepted (Filter 0 Hit)

Figure 10-42

shows how the ﬁrst 32-bit