HD6413007F20 Renesas Electronics America, HD6413007F20 Datasheet - Page 452
HD6413007F20
Manufacturer Part Number
HD6413007F20
Description
IC H8 MCU ROMLESS 5V 100QFP
Manufacturer
Renesas Electronics America
Series
H8® H8/300Hr
Datasheet
1.D13007F20V.pdf
(798 pages)
Specifications of HD6413007F20
Core Processor
H8/300H
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, PWM, WDT
Number Of I /o
35
Program Memory Type
ROMless
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
100-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Program Memory Size
-
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12. Watchdog Timer
12.3.2
Figure 12.5 illustrates interval timer operation. To use the WDT as an interval timer, clear bit
WT/IT to 0 and set bit TME to 1 in TCSR. An interval timer interrupt request is generated at each
TCNT overflow. This function can be used to generate interval timer interrupts at regular
intervals.
12.3.3
Figure 12.6 shows the timing of setting of the OVF flag. The OVF flag is set to 1 when TCNT
overflows. At the same time, a reset signal is generated in watchdog timer operation, or an interval
timer interrupt is generated in interval timer operation.
Rev.5.00 Sep. 12, 2007 Page 422 of 764
REJ09B0396-0500
H'FF
TCNT
count value
H'00
φ
TCNT
Overflow signal
OVF
Interval Timer Operation
Timing of Setting of Overflow Flag (OVF)
WT/
TME = 1
IT
= 0
Interval
timer
interrupt
Figure 12.5 Interval Timer Operation
Figure 12.6 Timing of Setting of OVF
H'FF
Interval
timer
interrupt
H'00
Interval
timer
interrupt
Interval
timer
interrupt
Time t
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