HD64F2134FA20 Renesas Electronics America, HD64F2134FA20 Datasheet - Page 439

• Manufacturer Part Number: HD64F2134FA20
• Description: IC H8S MCU FLASH 128K 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of HD64F2134FA20

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: IrDA, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 58
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

14.3.3
The OVF flag is set to 1 if TCNT overflows during interval timer operation. At the same time, an
interval timer interrupt (WOVI) is requested. This timing is shown in figure 14.5.
If NMI request generation is selected in watchdog timer mode, when TCNT overflows the OVF
bit in TCSR is set to 1 and at the same time an NMI interrupt is requested.
Legend:
WOVI: Interval timer interrupt request generation
H'FF
H'00
TCNT count
TCNT
Overflow signal
(internal signal)
OVF
WT/IT = 0
TME = 1
Timing of Setting of Overflow Flag (OVF)
Figure 14.4 Operation in Interval Timer Mode
Overflow
WOVI
Figure 14.5 Timing of OVF Setting
H'FF
Overflow
WOVI
Rev. 4.00 Jun 06, 2006 page 383 of 1004
Overflow
Section 14 Watchdog Timer (WDT)
WOVI
H'00
Overflow
REJ09B0301-0400
WOVI
Time