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Section 2 CPU
2.7
CPU States
2.7.1
Overview
There are four CPU states: the reset state, program execution state, program halt state, and
exception-handling state. The program execution state includes active (high-speed or medium-
speed) mode and subactive mode. In the program halt state there are a sleep (high-speed or
medium-speed) mode, standby mode, watch mode, and sub-sleep mode. These states are shown in
figure 2.14. Figure 2.15 shows the state transitions.
Rev. 6.00 Aug 04, 2006 page 73 of 680
REJ09B0145-0600
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