Xilinx MicroBlaze - Page 104

MicroBlaze Processor Reference Guide 104
UG984 (v2018.2) June 21, 2018 www.xilinx.com
Chapter 2: MicroBlaze Architecture
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 2-47.
X-Ref Target - Figure 2-30
Figure 2-30: Performance Counter Data Write Register
0
Item
31
X19766-082517
Table 2-48: Performance Counter Data Write Register (PCDWR)
Bits Name Description Reset Value
31:0 Item
Counter value item to write into a counter
0
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