![](http://datasheet.mmic.net.cn/110000/M32186F8VFP_datasheet_3496152/M32186F8VFP_687.png)
13
CAN MODULE
13-77
32185/32186 Group Hardware Manual
Rev.1.10 REJ09B0235-0110 May 15, 07
CAN0 Global Mask Register A Extended ID2 (C0GMSKAE2)
<Address: H’0080 1024>
CAN0 Global Mask Register B Extended ID2 (C0GMSKBE2)
<Address: H’0080 102C>
CAN0 Local Mask Register A Extended ID2 (C0LMSKAE2)
<Address: H’0080 1034>
CAN0 Local Mask Register B Extended ID2 (C0LMSKBE2)
<Address: H’0080 103C>
CAN1 Global Mask Register A Extended ID2 (C1GMSKAE2)
<Address: H’0080 1424>
CAN1 Global Mask Register B Extended ID2 (C1GMSKBE2)
<Address: H’0080 142C>
CAN1 Local Mask Register A Extended ID2 (C1LMSKAE2)
<Address: H’0080 1434>
CAN1 Local Mask Register B Extended ID2 (C1LMSKBE2)
<Address: H’0080 143C>
123456
B7
b0
EID12M EID13M EID14M EID15M EID16M EID17M
000000
0
<Upon exiting reset: H’00>
b
Bit Name
Function
R
W
0,1
No function assigned. Fix to "0."
00
2–7
EID12M–EID17M
0: ID not checked
R
W
(Extended mask ID12–extended mask ID17)
1: ID checked
Four mask registers are used in acceptance filtering: global mask register A, global mask register B, local mask
register A and local mask register B. The global mask registers A and B are used for message slots 0-15 and
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: EID0M corresponds to the MSB of the extended 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