UPD78F0552MA-FAA-AX Renesas Electronics America, UPD78F0552MA-FAA-AX Datasheet - Page 703

• Manufacturer Part Number: UPD78F0552MA-FAA-AX
• Description: MCU 8BIT 16-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0/Kx2-Lr

Specifications of UPD78F0552MA-FAA-AX

• Core Processor: 78K/0
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

78K0/Kx2-L
• If supply voltage fluctuation is 50 ms or less in vicinity of LVI detection voltage
R01UH0028EJ0400 Rev.4.00
Sep 27, 2010
Note A flowchart is shown on the next page.
Figure 22-11. Example of Software Processing After Reset Release (1/2)
No
(TMHE1 = 0
Setting 8-bit timer H1
50 ms has passed?
(to measure 50 ms)
Restarting timer H1
voltage or higher
processing <1>
(TMIFH1 = 1?)
processing <2>
Clearing WDT
Initialization
Initialization
(LVIF = 0?)
Setting LVI
Detection
Reset
No
Yes
LVI reset
TMHE1 = 1)
Yes
;
; Setting of detection level by LVIS.
; f
; The timer counter is cleared and the timer is started.
; Initial setting for ports,
Check the reset source
The low-voltage detector operates (LVION = 1).
Set the count clock and compare value so that
INTTMH1 occurs after 50 ms have elapsed.
Timer starts (TMHE1 = 1).
setting of division ratio of system clock,
such as setting of timer or A/D converter.
PRS
= Internal high-speed oscillation clock (default)
CHAPTER 22 LOW-VOLTAGE DETECTOR
Note
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