DF2506BR26DV Renesas Electronics America, DF2506BR26DV Datasheet - Page 436

• Manufacturer Part Number: DF2506BR26DV
• Description: IC H8S/2506 MCU FLASH 176-LFBGA
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2500r

Specifications of DF2506BR26DV

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 26MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 104
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 176-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 12 Watchdog Timer (WDT)
12.4.3
The OVF bit in TCSR 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 12.4.
In the case of WDT_1, when an NMI request is selected in watchdog timer mode, if TCNT
overflows, the OVF bit in TCSR is set to 1 and an NMI interrupt is requested simultaneously.
Rev. 6.00 Sep. 24, 2009 Page 388 of 928
REJ09B0099-0600
φ
OVF
TCNT
Overflow signal
(internal signal)
Legend:
WOVI: Interval timer interrupt request generation
H'FF
H'00
Timing of Setting Overflow Flag (OVF)
TCNT value
WT/IT = 0
TME = 1
Figure 12.3 Interval Timer Mode Operation
Overflow
Figure 12.4 Timing of OVF Setting
WOVI
H'FF
Overflow
WOVI
Overflow
WOVI
H'00
Overflow
WOVI
Time