DF38602RFT10 Renesas Electronics America, DF38602RFT10 Datasheet - Page 243

• Manufacturer Part Number: DF38602RFT10
• Description: MCU 3V 16K 32-QFN
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300H SLPr

Specifications of DF38602RFT10

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 10MHz
• Connectivity: I²C, IrDA, SCI, SSU
• Peripherals: POR, PWM, WDT
• Number Of I /o: 13
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 32-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: HD64F38602RFT10; HD64F38602RFT10

12.3.2
Figure 12.3 shows the operation in interval timer mode. To use the WDT as an interval timer, set
the WT/IT bit in TCSRWD2 to 1.
When the WDT is used as an interval timer, an interval timer interrupt request is generated each
time the TCWD overflows. Therefore, an interval timer interrupt can be generated at intervals.
12.3.3
Figure 12.4 shows the timing of the OVF flag setting. The OVF flag in TCSRWD2 is set to 1 if
TCWD overflows. At the same time, a reset signal is output in watchdog timer mode and an
interval timer interrupt is generated in interval timer mode.
count value
TCWD
H'FF
H'00
Interval Timer Mode
Timing of Overflow Flag (OVF) Setting
WT/IT = 1
φ
TCWD
Overflow signal
OVF
request generated
Interval timer
Figure 12.3 Interval Timer Mode Operation
interrupt
Figure 12.4 Timing of OVF Flag Setting
H'FF
request generated
Interval timer
interrupt
request generated
Interval timer
interrupt
Rev. 3.00 May 15, 2007 Page 209 of 518
H'00
request generated
Interval timer
interrupt
Section 12 Watchdog Timer
request generated
REJ09B0152-0300
Interval timer
interrupt
Time