HD404829R Datasheet, PDF (33/149 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a LCD controller/Driver Circuit

HD404829R Series
Table 14 Operations in Low-Power Dissipation Modes
Function
Stop Mode
Watch Mode
Standby Mode
Subactive Mode^*2
CPU
Reset
Retained
Retained
Operating
RAM
Retained
Retained
Retained
Operating
Timer A
Reset
Operating
Operating
Operating
Timer B
Reset
Stopped
Operating
Operating
Timer C
Reset
Stopped
Operating
Operating
Timer D
Reset
Stopped
Operating
Operating
Serial interface Reset
Stopped^*3
Operating
Operating
A/D
Reset
Stopped
Operating
Stopped
LCD
Reset
Operating ^*4
Operating
Operating
I/O
Reset^*1
Retained
Retained
Operating
Notes: 1.
2.
3.
4.
Output pins are at high impedance.
Subactive mode is an optional function specified on the function option list.
Transmission/Reception is activated if a clock is input in external clock mode. However,
interrupts stop.
When a 32-kHz clock source is used.
Table 15 I/O Status in Low-Power Dissipation Modes
D₀–D₉
D₁₀–D₁₁
R0–R7
Output
Standby Mode,
Watch Mode
Stop Mode
Retained
High impedance
—
—
Retained or output
High impedance
of peripheral functions
Input
Active Mode,
Subactive Mode
Input enabled
Input enabled
Input enabled
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