Xilinx MicroBlaze Reference Manual page 104

Performance Counter Data Write Register
The Performance Counter Data Write Register (PCDWR) writes initial values to the counters.
To write all configured counters, the register should be written repeatedly. This register is a
write-only register. Issuing a read request has no effect, and undefined data is read.
Since a counter can have more than 32 bits, depending on the configuration, the register
might need to be written repeatedly to update all information for a particular counter, as
described in Table
X-Ref Target - Figure 2-30
31
Table 2-48: Performance Counter Data Write Register (PCDWR)
Bits Name
31:0 Item
MicroBlaze Processor Reference Guide
UG984 (v2018.2) June 21, 2018
2-47.
Figure 2-30: Performance Counter Data Write Register
Counter value item to write into a counter
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Chapter 2: MicroBlaze Architecture
Item
Description
0
X19766-082517
Reset Value
0
104
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