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CAN SERIAL COMMUNICATIONS CONTROLLER
CAN_EGMSK
(87C196CB)
Address:
Reset State:
1E0BH, 1E0AH,
1E09H, 1E08H
Unchanged
Program the CAN extended global mask (CAN_EGMSK) register to mask (“don’t care”) specific
message identifier bits for extended message objects.
31 24
87C196CB
MSK4 MSK3 MSK2 MSK1 MSK0 — — —
23 16
MSK12 MSK11 MSK10 MSK9 MSK8 MSK7 MSK6 MSK5
15 8
MSK20 MSK19 MSK18 MSK17 MSK16 MSK15 MSK14 MSK13
7 0
MSK28 MSK27 MSK26 MSK25 MSK24 MSK23 MSK22 MSK21
Bit
Number
Bit
Mnemonic
Function
31:27 MSK4:0 ID Mask
These bits individually mask incoming message identifier (ID) bits.
0 = mask the ID bit (accept either “0” or “1”)
1 = accept only an exact match
26:24 — Reserved; for compatibility with future devices, write zeros to these bits.
23:16
15:8
7:0
MSK12:5
MSK20:13
MSK28:21
ID Mask
These bits individually mask incoming message identifier (ID) bits.
0 = mask the ID bit (accept either “0” or “1”)
1 = accept only an exact match
Figure 7-10. CAN Extended Global Mask (CAN_EGMSK) Register