Intel 8XC196K Series User Manual page 553

8XC196K x, J x , CA USER'S MANUAL
CAN_MSK15
CAN_MSK15
(87C196CA)
Program the CAN message 15 mask (CAN_MSK15) register to mask ("don't care") specific message
identifier bits for message 15 in addition to those bits masked by a global mask (CAN_EGMSK or
CAN_SGMSK).
31
87C196CA MSK4
23
MSK12
15
MSK20
7
MSK28
Bit
Number
31:27 MSK4:0
26:24 —
23:16 MSK12:5
15:8 MSK20:13
7:0 MSK28:21
NOTE: Setting a CAN_MSK15 bit in any position that is cleared in the global mask register has no
effect. The message 15 mask is ANDed with the global mask, so any "don't care" bits
defined in a global mask are also "don't care" bits for message 15.
Table C-9. CAN_MSK15 Addresses and Reset Values
CAN_MSK15 (bits 0–7)
CAN_MSK15 (bits 8–15)
CAN_MSK15 (bits 16–23)
CAN_MSK15 (bits 24–31)
†
This register can be accessed as a byte, word, or double word.
††
After reset, this register contains the value that was written to it before
reset.
C-26
MSK3 MSK2 MSK1
MSK11 MSK10 MSK9
MSK19 MSK18 MSK17
MSK27 MSK26 MSK25
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
Reserved. These bits are undefined; for compatibility with future devices,
do not modify these bits.
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
Register
Address:
Reset State:
MSK0 —
MSK8 MSK7
MSK16 MSK15
MSK24 MSK23
Function
Address Reset Value
1E0CH Unchanged
1E0DH Unchanged
1E0EH Unchanged
1E0FH Unchanged
Table C-9
24
— —
16
MSK6 MSK5
8
MSK14 MSK13
0
MSK22 MSK21
††