Standby Mode Operating States; Table 3.7-1 Operating States Of The Cpu And Peripheral Functions In Standby Mode - Fujitsu F2MC-8L Series Hardware Manual

3.7.1

Standby Mode Operating States

This section describes the operating states of the CPU and peripheral functions in
each standby mode.
Standby Mode Operating States

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

Function
Main clock
Subclock
Instruction
CPU ROM
RAM
I/O ports
Timebase timer
Watchdog timer
8/16-bit timer/
counter
8-bit serial I/O
Buzzer output
Peripheral
functions
External
interrupts 1 and
2
Watch prescaler
Remote-control
transmission
frequency
generator
Peripheral
control clock
output
Pins
Wake-up from standby
Main clock mode
Stop
RUN Sleep
(SPL = 0)
Stop
Opera-
ting
Opera-
ting
Stop Stop
Hold Hold
Opera-
ting
Stop
Stop
Opera-
ting
Opera-
ting *
Opera-
ting
Opera-
ting
Opera-
ting *
Stop
Opera-
ting *
Hold Hold
Reset or Reset or Reset or
interrupts interrupts interrupts
3.7 Standby Modes (Low-power Consumption)
Operating mode
Stop
RUN
(SPL = 1)
Stop Stop
Opera-
ting
Stop
Opera-
ting
Hold
Stop
Opera-
2
ting *
Stop
Opera-
ting
Opera- Opera-
2 2 2
ting * ting *
Opera-
ting
Opera-
Opera-
1 1
ting *
ting
Stop
Opera- Opera-
2 2 2
ting * ting *
Hi-z Opera-
ting
Reset or Reset or
interrupts interrupts
Subclock mode
Stop Stop
Sleep
(SPL = 0) (SPL = 1)
Stop
Opera-
Stop Stop
ting
Stop
Hold Hold Hold
Stop
Stop Stop
Opera-
ting
Opera-
2
ting *
Opera- Opera-
ting ting
Opera-
ting
Stop Stop
Opera-
2
ting *
Hold Hold Hi-z
Reset or Reset or Reset or
interrupts interrupts interrupts
Watch
Stop
Opera-
ting
Stop
Hold
Stop
Opera-
2
ting *
Opera-
ting
Opera-
2
ting *
Hold
Reset or
interrupts
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