Table of Contents
Advertisement
■ Settings Initialization Reset (INIT) State
In the settings initialization reset (INIT) state, all settings are initialized. This state occurs if a
settings initialization reset (INIT) is accepted or the hardware standby state is ended.
Execution of a program on the CPU is stopped and the program counter is initialized.
peripheral circuits are initialized. The oscillation circuit runs, but the PLL stops running. All
internal clocks are stopped while the L level is input to the external INIT pin; otherwise, they run.
•
A settings initialization reset (INIT) and an operation initialization reset (RST) are output to the
internal circuits.
•
If a settings initialization reset (INIT) no longer exists, the state is cleared and the oscillation
stabilization wait reset (RST) state is entered. Then, the operation initialization reset (RST)
state is entered and the settings initialization reset sequence is executed.
■ Priority of State Transition Requests
In any state, state transition requests conform to the priority listed below.
requests that occur only in a specific state are valid only in that state.
[Highest]
[Lowest]
Settings initialization reset (INIT) request
Hardware standby request
End of oscillation stabilization wait time (occurs only in the oscillation
stabilization wait reset state and the oscillation stabilization wait RUN state)
Operation initialization reset (RST) request
Valid interrupt request (occurs only in the RUN, sleep, and stop states)
Stop mode request (writing to a register) (occurs only in the RUN state)
CHAPTER 3 CPU AND CONTROL UNITS
All
However, some
109
Advertisement
Table of Contents
