Section 5 Power-Down Modes
Rev. 7.00 Mar 10, 2005 page 121 of 652
REJ09B0042-0700
Table 5.2
Internal State in Each Operating Mode
Active Mode
Sleep Mode
Function
System clock oscillator
Subclock oscillator
CPU
operations RAM
High-
Speed
Functions Functions Functions Functions Halted
Functions Functions Functions Functions Functions
Functions Functions Halted
Retained
Medium-
Speed
High-
Speed
Medium-
Speed
Watch
Mode
Subactive
Mode
Halted
Functions
Functions
Subsleep
Mode
Halted
Functions
Halted
Retained
Standby
Mode
Halted
Functions
Halted
Retained
Instructions
Halted
Retained
Halted
Retained
Registers
I/O ports
IRQ
0
IRQ
1
IRQAEC
IRQ
3
IRQ
4
WKP
0
WKP
1
WKP
2
WKP
3
WKP
4
WKP
5
WKP
6
WKP
7
Timer A
Asynchronous
event counter
Timer C
Retained
*
1
Functions
Functions Functions Functions Functions Functions
Functions
Functions
External
interrupts
Retained
*
6
Retained
*
6
Functions Functions Functions Functions Functions
Functions
Functions
Functions
Functions Functions Functions Functions Functions
*
5
Functions
*
5
Functions
Functions
*
5
Functions
Retained
Functions
*
8
Peripheral
functions
Functions
*
8
Retained
Functions/
Retained
*
2
Functions/
Retained
*
7
Functions/
Retained
*
9
Functions/
Retained
*
3
Retained
Retained
Functions/
Retained
*
4
Functions
Functions/
Retained
*
2
Functions/
Retained
*
10
Functions/
Retained
*
9
Functions/
Retained
*
3
Retained
Retained
Functions/
Retained
*
4
Functions
Retained
WDT
Functions/
Retained
*
10
Functions/
Retained
*
9
Reset
Functions/
Retained
*
11
Retained
Timer F
Timer G
SCI3
Reset
PWM
A/D converter
LCD
Retained
Retained
Functions/
Retained
*
4
Retained
Retained
Retained
LVD
Register contents are retained, but output is high-impedance state. Port 5 of the HD64F38024 retains the previous
pin state.
Functions if an external clock or the
φ
W
/4 internal clock is selected; otherwise halted and retained.
Functions if
φ
W
/2 is selected as the internal clock; otherwise halted and retained.
Functions if
φ
W
,
φ
W
/2 or
φ
W
/4 is selected as the operating clock; otherwise halted and retained.
Functions if the timekeeping time-base function is selected.
External interrupt requests are ignored. Interrupt request register contents are not altered.
On the H8/38124 Group, operates when
φ
W
/32 is selected as the internal clock or the on-chip oscillator is selected;
otherwise stops and stands by. On the H8/38024, H8/38024S, and H8/38024R Group, operates when
φ
W
/32 is
selected as the internal clock; otherwise stops and stands by.
Incrementing is possible, but interrupt generation is not.
Functions if
φ
W
/4 is selected as the internal clock; otherwise halted and retained.
10. On the H8/38124 Group, operates when
φ
W
/32 is selected as the internal clock or the on-chip oscillator is selected;
otherwise stops and stands by. On the H8/38024, H8/38024S, and H8/38024R Group, stops and stands by.
Functions Functions Functions Functions Functions
Functions
Notes: 1.
2.
3.
4.
5.
6.
7.
8.
9.