Non-Confidential | ![]() | 100336_0104_00_en | ||
| ||||
Home > Programmer's model > GICP register summary > Filter Registers, GICP_FRn |
These registers configure the filtering of event counter n. The GIC-600 supports five counters, n = 0-4.
The GICP_FRn characteristics are:
Usage constraints | There are no usage constraints. |
Configurations | Available in all GIC-600 configurations. |
Attributes | See 4.9 GICP register summary. |
The following figure shows the bit assignments.
The following table shows the bit assignments.
Table 4-62 GICP_FRn bit assignments
Bits | Name | Function |
---|---|---|
[31:30] | FilterType |
Filter type:
|
[29] | FilterEncoding |
0 = Filter on range. 1 = Filter on an exact match. |
[28:16] | - | Reserved. |
[15:0] | Filter |
If the corresponding GICP_EVTYPERn.EVENT indicates an event that cannot be filtered, then the value in this register is ignored. When the corresponding FilterEncoding == 1, counter n counts events that are only associated with an exact match of the FilterType. When FilterEncoding == 0, this field is encoded so that the least-significant bit[0] indicates the uppermost of a contiguous span of least-significant FilterType bits that are ignored for the purposes of matching. |