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HD6473887 Datasheet, PDF (115/523 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer
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Table 5-2 Internal State in Each Operating Mode
Active Mode
Sleep Mode
Function
High-
Speed
Medium- High-
Speed
Speed
Medium- Watch
Speed
Mode
Subactive Subsleep Standby
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 IRQ0
interrupts IRQ1
IRQ2
IRQ3
IRQ4
WKP0
WKP1
WKP2
WKP3
WKP4
WKP5
WKP6
WKP7
Peripheral Timer A
Functions
Functions
Functions
Functions
Functions Functions
Retained* 6
Functions
Functions
Retained* 6
Functions Functions Functions Functions Functions Functions Functions Functions
Functions Functions Functions Functions Functions*5 Functions*5 Functions*5 Retained
functions Asynchro-
nous counter
Functions*8 Functions Functions Functions*8
Timer C
Retained Functions/ Functions/ Retained
Retained*2 Retained*2
WDT
Functions/ Retained
Retained* 7
Timer G,
Timer F
Functions/ Functions/ Functions/
Retained*9 Retained*9 Retained*9
SCI1
Retained Functions/ Functions/ Retained
Retained*9 Retained*9
SCI3-1,
SCI3-2
Reset
Functions/ Functions/ Reset
Retained*3 Retained*3
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 øW/4 internal clock is selected; otherwise halted and retained.
3. Functions if øW/2 is selected as the internal clock; otherwise halted and retained.
4. Functions if øW or øW/2 or øW/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 øW/32 is selected as the internal clock; otherwise halted and retained.
8. Incrementing is possible, but interrupt generation is not.
9. Functions if øW/4 is selected as the external or internal clock; otherwise halted and retained.
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