W90210F Datasheet, PDF (53/67 Pages) Winbond – PA-RISC EMBEDDED CONTROLLER

W90210F
Appendix B. Diagnostic Instructions
HALT
Format:
0:5
5:10
05
-
6
5
Purpose:
Description:
Operation:
Note:
HALT
11:15
21:25 26 27:31
- - - 10 - -
5 23 5 1 5
To halt instruction pipeline and entry ICE single-step mode.
The HALT instruction clears instruction pipeline. Any unfinished bus cycle and internal I/D-
cache operation will be cleared before CPU entering single-step mode.
Enforce CPU clear pipeline and entry single-step mode;
This instruction can be executed by code running at any privileged level. (different from other
diagnostic instr.)
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Version 1.4, 10/8/97