Table 5-2 Internal State in Each Operating Mode
Active Mode
Sleep Mode
High- Medium-
High- Medium-
Watch
Subactive
Subsleep
Standby
Function
Speed
Speed
Speed
Speed
Mode
Mode
Mode
Mode
System clock oscillator
Functions
Functions
Functions
Functions
Halted
Halted
Halted
Halted
Subclock oscillator
Functions
Functions
Functions
Functions
Functions
Functions
Functions
Functions
CPU Instructions
Functions
Functions
Halted
Halted
Halted
Functions
Halted
Halted
operations
RAM
Retained
Retained
Retained
Retained
Retained
Registers
I/O ports
Retained
*
1
External IRQ
0
Functions
Functions
Functions
Functions
Functions
Functions
Functions
Functions
interrupts
IRQ
1
Retained
*
6
IRQ
2
Retained
*
6
IRQ
3
IRQ
4
WKP
0
Functions
Functions
Functions
Functions
Functions
Functions
Functions
Functions
WKP
1
WKP
2
WKP
3
WKP
4
WKP
5
WKP
6
WKP
7
Peripheral
Timer A
Functions
Functions
Functions
Functions
Functions
*
5
Functions
*
5
Functions
*
5
Retained
functions
Asynchronous
Functions
*
8
Functions
Functions
Functions
*
8
counter
Timer C
Retained
Functions/
Functions/
Retained
Retained
*
2
Retained
*
2
WDT
Functions/
Retained
Retained
*
7
Timer G,
Functions/
Functions/
Functions/
Timer F
Retained
*
9
Retained
*
9
Retained
*
9
SCI3-1
Reset
Functions/
Functions/
Reset
Retained
*
3
SCI3-2
PWM
Retained
Retained
Retained
Retained
A/D converter
Retained
Retained
Retained
Retained
LCD
Functions/
Functions/
Functions/
Retained
Retained
*
4
Retained
*
4
Retained
*
4
Notes: 1. Register contents are retained, but output is high-impedance state.
2. Functions if an external clock or the ø
W
/4 internal clock is selected; otherwise halted and retained.
3. Functions if ø
W
/2 is selected as the internal clock; otherwise halted and retained.
4. Functions if ø
W
, ø
W
/2 or ø
W
/4 is selected as the operating clock; otherwise halted and retained.
5. Functions if the timekeeping time-base function is selected.
6. External interrupt requests are ignored. Interrupt request register contents are not altered.
7. Functions if ø
W
/32 is selected as the internal clock; otherwise halted and retained.
8. Incrementing is possible, but interrupt generation is not.
9. Functions if an external clock or the ø
W
/4 internal clock is selected; otherwise halted and retained.
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