32186 datasheet(685/1032 Pages) RENESAS

685 / 1032 page

CAN MODULE

13-75

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

13.2.15 CAN Mask Registers

CAN0 Global Mask Register A Standard ID0 (C0GMSKAS0)

<Address: H’0080 1020>

CAN0 Global Mask Register B Standard ID0 (C0GMSKBS0)

<Address: H’0080 1028>

CAN0 Local Mask Register A Standard ID0 (C0LMSKAS0)

<Address: H’0080 1030>

CAN0 Local Mask Register B Standard ID0 (C0LMSKBS0)

<Address: H’0080 1038>

CAN1 Global Mask Register A Standard ID0 (C1GMSKAS0)

<Address: H’0080 1420>

CAN1 Global Mask Register B Standard ID0 (C1GMSKBS0)

<Address: H’0080 1428>

CAN1 Local Mask Register A Standard ID0 (C1LMSKAS0)

<Address: H’0080 1430>

CAN1 Local Mask Register B Standard ID0 (C1LMSKBS0)

<Address: H’0080 1438>

123456

SID0M

SID1M

SID2M

SID3M

SID4M

00000

Bit Name

Function

0–2

No function assigned. Fix to "0."

3–7

SID0M–SID4M

0: ID not checked

(Standard mask ID0–standard mask ID4)

1: ID checked

CAN0 Global Mask Register A Standard ID1 (C0GMSKAS1)

<Address: H’0080 1021>

CAN0 Global Mask Register B Standard ID1 (C0GMSKBS1)

<Address: H’0080 1029>

CAN0 Local Mask Register A Standard ID1 (C0LMSKAS1)

<Address: H’0080 1031>

CAN0 Local Mask Register B Standard ID1 (C0LMSKBS1)

<Address: H’0080 1039>

CAN1 Global Mask Register A Standard ID1 (C1GMSKAS1)

<Address: H’0080 1421>

CAN1 Global Mask Register B Standard ID1 (C1GMSKBS1)

<Address: H’0080 1429>

CAN1 Local Mask Register A Standard ID1 (C1LMSKAS1)

<Address: H’0080 1431>

CAN1 Local Mask Register B Standard ID1 (C1LMSKBS1)

<Address: H’0080 1439>

b15

SID6M

SID5M

SID7M

SID8M

SID9M SID10M

000000

Bit Name

Function

8–9

No function assigned. Fix to "0."

10–15

SID5M–SID10M

0: ID not checked

(Standard mask ID5–standard mask ID10)

1: ID checked

Four mask registers are used in acceptance filtering: global mask register A, global mask register B, local mask

16-29, while local mask registers A and B are used for message slots 30 and 31, respectively.

• If any bit in this register is set to "0," the corresponding ID bit is masked (assumed to have matched) during

acceptance filtering.

• If any bit in this register is set to "1," the corresponding ID bit is compared with the receive ID during

acceptance filtering and when it matches the ID set in the message slot, the received data is stored in it.

Notes: • SID0M corresponds to the MSB of the standard ID.

• The global mask register A can only be modified when none of slots 0-15 have receive requests set.

• The global mask register B can only be modified when none of slots 16-29 have receive requests set.

• The local mask register A can only be modified when slot 30 does not have a receive request set.

• The local mask register B can only be modified when slot 31 does not have a receive request set.

13.2 CAN Module Related Registers

32186 Datasheet(PDF) 685 Page - Renesas Technology Corp

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