Intel 8XC196NT Computer Hardware User Manual


 
7-19
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