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32180 Group User’s Manual (Rev.1.0)
13.2 CAN Module Related Registers
CAN MODULE
CAN0 Single-Shot Interrupt Request Status Register (CAN0SSIST)
<address: H
’0080 1044>CAN1 Single-Shot Interrupt Request Status Register (CAN1SSIST)
<Address: H
’0080 1444>b01234567891011121314b15
SSIST0 SSIST1 SSIST2 SSIST3 SSIST4 SSIST5 SSIST6 SSIST7 SSIST8 SSIST9 SSIST10 SSIST11 SSIST12 SSIST13 SSIST14 SSIST15
0000000000000000
<After reset: H’0000>
b Bit Name Function R W
0 SSIST0 0: No arbitration-lost or transmit error R(Note 1)
Slot 0 single-shot interrupt request status 1: Arbitration-lost or transmit error occurred
1 SSIST1
Slot 1 single-shot interrupt request status
2 SSIST2
Slot 2 single-shot interrupt request status
3 SSIST3
Slot 3 single-shot interrupt request status
4 SSIST4
Slot 4 single-shot interrupt request status
5 SSIST5
Slot 5 single-shot interrupt request status
6 SSIST6
Slot 6 single-shot interrupt request status
7 SSIST7
Slot 7 single-shot interrupt request status
8 SSIST8
Slot 8 single-shot interrupt request status
9 SSIST9
Slot 9 single-shot interrupt request status
10 SSIST10
Slot 10 single-shot interrupt request status
11 SSIST11
Slot 11 single-shot interrupt request status
12 SSIST12
Slot 12 single-shot interrupt request status
13 SSIST13
Slot 13 single-shot interrupt request status
14 SSIST14
Slot 14 single-shot interrupt request status
15 SSIST15
Slot 15 single-shot interrupt request status
Note 1: Only writing "0" is effective. Writing "1" has no effect; the bit retains the status it had before the write.
If transmission in any slot failed for reasons of arbitration-lost or a transmit error, the corresponding bit in this
register is set to "1". The bit is cleared by writing "0" in software.
Furthermore, if the corresponding bit in the CAN single-shot interrupt request enable register has been set to "1",
an interrupt request can be generated when transmission failed.
When writing to the CAN single-shot interrupt request status, make sure only the bits to be cleared are set to "0"
and all other bits are set to "1". Those bits that have been set to "1" are unaffected by writing in software and
retain the value they had before the write.
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