HD64F2623FA20J Renesas Electronics America, HD64F2623FA20J Datasheet - Page 442

• Manufacturer Part Number: HD64F2623FA20J
• Description: IC H8S MCU FLASH 256K 100-QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2623FA20J

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI, SmartCard
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 12 Watchdog Timer
12.3.4
In the WDT0, the WOVF flag is set to 1 if TCNT overflows during watchdog timer operation. At
the same time, the WDTOVF signal goes low. If TCNT overflows while the RSTE bit in RSTCSR
is set to 1, an internal reset signal is generated for the entire chip. Figure 12.7 shows the timing in
this case.
Rev. 5.00 Jan 10, 2006 page 416 of 1042
REJ09B0275-0500
TCNT
Overflow signal
(internal signal)
WOVF
WDTOVF signal
Internal reset
signal
Overflow signal
(internal signal)
OVF
TCNT
Timing of Setting of Watchdog Timer Overflow Flag (WOVF)
Figure 12.7 Timing of Setting of WOVF
Figure 12.6 Timing of Setting of OVF
H'FF
H'FF
132 states
515/516 states (WDT1)
H'00
518 states (WDT0)
H'00