Specifications

AHB Monitor

4.3.25 CtGxiPageChange

The MBX transfers are limited to single word transactions. Page changes are tracked to

monitor the behavior of the memory interface of the MBX.

Contains the total count of transfers that causes a page change from the previous

transfer. The page size is set by the GxiPageSize register. The count is disabled by

default and can be controlled through the AHBMONCtrlReg, and reset through the

AHBMONRstCtrs.

4.3.26 GxiPageSize

Page changes are tracked to monitor the behavior of the memory interface based on the

size defined within this register as shown in Table 4-1.

4.3.27 AHBMONRstCtrs

The AHB Monitor disables all the event counters at reset. To enable collection of

statistical data for specific code segments or operations the AHBMONRstCtrs was

included to allow a software reset of the counters.

A write of any value resets all counters.

4.3.28 AHBMONPrstCtrs

The AHB Monitor disables all the event counters at reset. To enable integration testing

of the AHB monitor the AHBMONPrstCtrs was included to allow software to preset the

counters with unique identifiers. When preset, each counter is loaded with the address

that is used to read it.

A write of any value presets all counters with its absolute address. This action also

disables the counters to ensure the values are held.

Table 4-1 GxiPageSize

Bits Name Type Function

[31:2] - - Reserved, read undefined, must be written to with zeros.

[1:0] GxiPageSize Read/write Defines the page size that the CtGxiPageChange uses.

b00 = 2k

b01 = 4k

b10 = 8k

b11 = 16k.