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HD404374FT Datasheet(PDF) 43 Page - Renesas Technology Corp

Part # HD404374FT
Description  Low-Voltage AS Microcomputers with On-Chip A/D Converter
PDF  161 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD404374FT Datasheet(HTML) 43 Page - Renesas Technology Corp

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HD404374/HD404384/HD404389/HD404082/HD404084 Series
Rev.5.00, Sep.11.2003, page 43 of 161
Operating Modes
The five operating modes shown in table 19 can be used for the MCU.
The function of each mode is shown in table 20, and the state transition diagram among each mode in
figure 11.
Table 19
Operating Modes and Clock Status
Mode Name
Active
Standby
Stop
Watch*
1
Subactive*
1, *3
Activation method
RESET
cancellation,
interrupt
request,
WU
0
input in stop
mode
STOP/SBY
instruction in
subactive
mode (when
direct
transfer is
selected)
SBY
instruction
STOP
instruction
when
TMA3 = 0
STOP
instruction
when
TMA3 = 1
INT
0/timer A or
WU
0 interrupt
request in watch
mode
System oscillator
OP
OP
Stopped
Stopped
Stopped
Status
Subsystem oscillator*
1
OP
OP
OP*
2
OP
OP
Cancellation method
RESET
input,
STOP/SBY
instruction
RESET
input,
interrupt
request
RESET
input,
WU
0 input
RESET
input,
INT
0/timer A
or
WU
0
interrupt
request
RESET input,
STOP/SBY
instruction
Notes: OP: implies in operation.
1. Applies to HD404374 Series.
2. Operating or stopping the oscillator can be selected by setting bit 3 of the system clock select
register (SSR: $004)
3. Subactive mode is an optional function; specify it on the fnction option list.



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