Datasheet

49.6.24 MCAN High Priority Message Status
Name: MCAN_HPMS
Offset: 0x94
Reset: 0x00000000
Property: Read-only
This register is updated every time a Message ID filter element configured to generate a priority event matches. This
can be used to monitor the status of incoming high priority messages and to enable fast access to these messages.
Bit 31 30 29 28 27 26 25 24
Access
Reset
Bit 23 22 21 20 19 18 17 16
Access
Reset
Bit 15 14 13 12 11 10 9 8
FLST FIDX[6:0]
Access
R R R R R R R R
Reset 0 0 0 0 0 0 0 0
Bit 7 6 5 4 3 2 1 0
MSI[1:0] BIDX[5:0]
Access
R R R R R R R R
Reset 0 0 0 0 0 0 0 0
Bit 15 – FLST Filter List
Indicates the filter list of the matching filter element.
Value Description
0
Standard filter list
1
Extended filter list
Bits 14:8 – FIDX[6:0] Filter Index
Index of matching filter element. Range is 0 to MCAN_SIDFC.LSS - 1 resp. MCAN_XIDFC.LSE - 1.
Bits 7:6 – MSI[1:0] Message Storage Indicator
Value Name Description
0
NO_FIFO_SEL No FIFO selected.
1
LOST FIFO message lost.
2
FIFO_0 Message stored in FIFO 0.
3
FIFO_1 Message stored in FIFO 1.
Bits 5:0 – BIDX[5:0] Buf
fer Index
Index of Receive FIFO element to which the message was stored. Only valid when MSI[1] = ‘1’.
SAM E70/S70/V70/V71 Family
Controller Area Network (MCAN)
© 2019 Microchip T
echnology Inc.
Datasheet
DS60001527D-page 1466