DF2266TF13V Renesas Electronics America, DF2266TF13V Datasheet - Page 349

• Manufacturer Part Number: DF2266TF13V
• Description: IC H8S/2266 MCU FLASH 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2200r

Specifications of DF2266TF13V

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 13MHz
• Connectivity: I²C, SCI, SmartCard
• Peripherals: LCD, POR, PWM, WDT
• Number Of I /o: 67
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

12.3.2
To use the WDT as an internal timer, set the WT/IT and TME bits in TCSR to 0.
When the WDT is used as an interval timer, an interval timer interrupt (WOVI) is generated each
time the TCNT overflows. (The NMI interrupt request is not generated.) Therefore, an interrupt
can be generated at intervals.
Legend:
WOVI: Interval timer interrupt request generation
H'FF
H'00
Interval Timer Mode
TCNT value
Legend:
WT/IT:
TME:
Note: * In the case of WDT_0, the internal reset signal is generated only when the RSTE bit is set to 1.
Internal reset signal *
WT/IT = 0
TME = 1
Timer mode select bit
Timer enable bit
In the case of WDT_1,either the internal reset or the NMI interrupt is generated.
H'FF
H'00
TCNT value
Figure 12.3 Watchdog Timer Mode Operation
Figure 12.4 Interval Timer Mode Operation
WT/IT = 1
TME = 1
Overflow
WOVI
Write H'00'
to TCNT
Overflow
WOVI
internal reset is
generated
Overflow
WOVF = 1
518 system clock (WDT0)
515/516 system clock (WDT1)
Rev. 5.00 Sep. 01, 2009 Page 297 of 656
Overflow
WOVI
Section 12 Watchdog Timer (WDT)
WT/IT = 1
TME = 1
Write H'00'
to TCNT
Overflow
WOVI
REJ09B0071-0500
Time
Time