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HD404324FS Datasheet(PDF) 27 Page - Renesas Technology Corp

Part # HD404324FS
Description  microcomputer designed to increase program productivity
PDF  103 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

HD404324FS Datasheet(HTML) 27 Page - Renesas Technology Corp

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HD404054 Series/HD404094 Series
25
Standby
Oscillator: Active
Peripheral clocks: Active
All other clocks: Stop
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Yes
Restart
processor clocks
Reset MCU
Execute
next instruction
Accept interrupt
Restart
processor clocks
No
Yes
IF = 1,
IM = 0, and
IE = 1?
RESET = 0?
IF0 •
IM0 = 1?
IF1 •
IM1 = 1?
IFTA •
IMTA
= 1?
IFTC •
IMTC = 1?
IFTD •
IMTD = 1?
No
Yes
IFS1 •
IMS1 = 1?
No
Stop
Oscillator: Stop
Peripheral clocks: Stop
All other clocks: Stop
RESET = 0?
STOPC = 0?
RAME = 1
RAME = 0
Yes
Yes
No
No
Execute
next instruction
Figure 12 MCU Operation Flowchart
Stop Mode: In stop mode, all MCU operations stop and RAM data is retained. Therefore, the power
dissipation in this mode is the least of all modes. The OSC
1 and OSC2 oscillator stops.
The MCU enters
stop mode if the STOP instruction is executed in active mode.
Stop mode is terminated by a
RESET input or a STOPC input as shown in figure 13. RESET or STOPC
must be applied for at least one t
RC to stabilize oscillation (refer to the AC Characteristics section).
When
the MCU restarts after stop mode is cancelled, all RAM contents before entering stop mode are retained,
but the accuracy of the contents of the accumulator, B register, W register, X/SPX register, Y/SPY register,
carry flag, and serial data register cannot be guaranteed.



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