38.7.23 High Priority Message Status

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.
Table 38-40. Register Bit Attribute Legend
SymbolDescriptionSymbolDescriptionSymbolDescription
RReadable bitHCCleared by Hardware(Grey cell)Unimplemented
WWritable bitHSSet by HardwareXBit is unknown at Reset
KWrite to clearSSoftware settable bit——
Name: HPMS
Offset: 0x94
Reset: 0x00000000
Property: Read-only

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
 FLSTFIDX[6:0] 
Access RRRRRRRR 
Reset 00000000 
Bit 76543210 
 MSI[1:0]BIDX[5:0] 
Access RRRRRRRR 
Reset 00000000 

Bit 15 – FLST Filter List

Indicates the filter list of the matching filter element.
ValueDescription
0Standard Filter List.
1Extended Filter List.

Bits 14:8 – FIDX[6:0] Filter Index

Index of matching filter element. Range is 0 to SIDFC.LSS bits (SIDFC <23:16>) bits (XIDFC <22:16>) - 1 (standard) or XIDFC.LSE bits (XIDFC <22:16>)- 1 (extended).

Bits 7:6 – MSI[1:0] Message Storage Indicator

This field defines the message storage information to a FIFO.
ValueNameDescription
0x0NONENo FIFO selected.
0x1LOSTFIFO message lost.
0x2FIFO0Message stored in FIFO 0.
0x3FIFO1Message stored in FIFO 1.

Bits 5:0 – BIDX[5:0] Buffer Index

Index of Rx FIFO element to which the message was stored. Only valid when MSI[1] = 1.