HD64F2676VFC33 Renesas Electronics America, HD64F2676VFC33 Datasheet - Page 707
HD64F2676VFC33
Manufacturer Part Number
HD64F2676VFC33
Description
IC H8S MCU FLASH 256K 144-QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2600r
Specifications of HD64F2676VFC33
Core Processor
H8S/2600
Core Size
16-Bit
Speed
33MHz
Connectivity
IrDA, SCI
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
103
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 12x10b; D/A 4x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
144-QFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
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- Current page: 707 of 981
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14.4.2
To use the WDT as an interval timer, set the WT/IT bit to 0 and TME bit in TCSR to 1.
When the WDT is used as an interval timer, an interval timer interrupt (WOVI) is generated each
time the TCNT overflows. Therefore, an interrupt can be generated at intervals.
When the TCNT overflows in interval timer mode, an interval timer interrupt (WOVI) is requested
at the same time the OVF bit in the TCSR is set to 1.
WDTOVF signal
Internal reset signal *
Legend:
WT/IT
TME
Notes: 1. If TCNT overflows when the RSTE bit is set to 1, an internal reset signal is generated.
: Timer mode select bit
: Timer enable bit
2. 130 states when the RSTE bit is cleared to 0.
Interval Timer Mode
H'FF
H'00
TCNT count
WT/IT=1
TME=1
1
Figure 14.2 Operation in Watchdog Timer Mode
H'00 written
to TCNT
WDTOVF and
internal reset are
generated
Overflow
132 states *
WOVF=1
518 states
Rev. 3.00 Mar 17, 2006 page 655 of 926
2
WT/IT=1
TME=1
Section 14 Watchdog Timer
REJ09B0283-0300
H'00 written
to TCNT
Time
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