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1 operations in standby mode, Operations in standby mode – FUJITSU F2MC-8L F202RA User Manual

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CHAPTER 3 CPU

3.7.1

Operations in Standby Mode

This section describes CPU and peripheral function operation in standby mode.

Operations in Standby Mode

State of pins in standby mode

The state of most I/O pins can remain the same as those set immediately before transition to stop mode or

set to Hi-Z using the pin state setting bit in the standby control register (STBC: SPL), regardless of clock

mode.

Note:

For details on pin states in standby mode, see "APPENDIX E Pin State of the MB89202/F202RA

Series ".

Table 3.7-1 Operations of the CPU and Peripheral Functions in Standby Mode

Function

RUN

Sleep

Stop

(SPL=0)

Stop

(SPL=1)

Clock

Active

Active

Stopped

Stopped

CPU

Instruction

Active

Stopped

Stopped

Stopped

ROM

Active

Holding

Holding

Holding

RAM

Peripheral

function

I/O port

Active

Holding

Holding

Hi-Z

Time-base timer

Active

Active

Stopped

Stopped

Watchdog timer

Active

Stopped

Stopped

Stopped

8-bit PWM timer/counter

Active

Active

Stopped

Stopped

8/16-bit capture timer/counter

Active

Active

Stopped

Stopped

UART

Active

Active

Stopped

Stopped

8-bit serial I/O

Active

Active

Stopped

Stopped

12-bit PPG

Active

Active

Stopped

Stopped

Buzzer

Active

Active

Stopped

Stopped

External interrupt 1 and 2

Active

Active

Active

Active

A/D converter

Active

Active

Stopped

Stopped

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