UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 501

• Manufacturer Part Number: UPD78F0413GA-GAM-AX
• Description: 8BIT UC, 32K FLASH, 1KB RAM, LCD
• Manufacturer: NEC

Specifications of UPD78F0413GA-GAM-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 30
• Ram Memory Size: 1024Byte
• Cpu Speed: 10MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 32KB
• Oscillator Type: External, Internal

If supply voltage fluctuation is 50 ms or less in vicinity of LVI detection voltage
Note A flowchart is shown on the next page.
No
(TMHE1 = 0
Setting 8-bit timer H1
50 ms have passed?
(to measure 50 ms)
Restarting timer H1
voltage or higher
processing <1>
processing <2>
Figure 22-9. Example of Software Processing After Reset Release (1/2)
(TMIFH1 = 1?)
Clearing WDT
Initialization
Initialization
(LVIF = 0?)
Detection
Reset
No
Yes
TMHE1 = 1)
LVI reset
CHAPTER 22 LOW-VOLTAGE DETECTOR
Yes
User’s Manual U18698EJ1V0UD
;
; f
; Setting of division ratio of system clock,
; The timer counter is cleared and the timer is started.
Check the reset source
Initialize the port.
such as setting of timer or A/D converter
Source: f
Timer starts (TMHE1 = 1).
PRS
= Internal high-speed oscillation clock (8.4 MHz (MAX.)) (default)
Where comparison value = 102:
PRS
(8.4 MHz (MAX.))/2
Note
12
,
50 ms
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