35.7.32 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 35-50. Register Bit Attribute Legend
Symbol	Description	Symbol	Description	Symbol	Description
R	Readable bit	HC	Cleared by Hardware	(Grey cell)	Unimplemented
W	Writable bit	HS	Set by Hardware	X	Bit is unknown at Reset
K	Write to clear	S	Software settable bit	—	—

Name:	HPMS
Offset:	0x194
Reset:	0x00000000
Property:	R


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 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.

Value	Name	Description
0	NONE	No FIFO selected
1	LOST	FIFO message lost
2	FIFO0	Message stored in FIFO 0
3	FIFO1	Message 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.