R5F61665N50FPV Renesas Electronics America, R5F61665N50FPV Datasheet - Page 892

• Manufacturer Part Number: R5F61665N50FPV
• Description: MCU FLASH 512K ROM 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8SX/1600r

Specifications of R5F61665N50FPV

• Core Processor: H8SX
• Core Size: 16/32-Bit
• Speed: 50MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SmartCard, USB
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 92
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Section 18 Watchdog Timer (WDT)
18.4.2
To use the WDT as an interval timer, set the WT/IT bit to 0 and the TME bit to 1 in TCSR.
When the WDT is used as an interval timer, an interval timer interrupt (WOVI) is generated each
time the TCNT overflows. Therefore, an interrupt can be generated at intervals.
When the TCNT overflows in interval timer mode, an interval timer interrupt (WOVI) is requested
at the same time the OVF bit in the TCSR is set to 1.
18.5
During interval timer mode operation, an overflow generates an interval timer interrupt (WOVI).
The interval timer interrupt is requested whenever the OVF flag is set to 1 in TCSR. The OVF flag
must be cleared to 0 in the interrupt handling routine.
Table 18.2 WDT Interrupt Source
Rev. 2.00 Oct. 21, 2009 Page 858 of 1454
REJ09B0498-0200
Name
WOVI
Interval Timer Mode
Interrupt Source
[Legend]
WOVI: Interval timer interrupt request
H'FF
H'00
TCNT value
WT/IT = 0
TME = 1
Interrupt Source
TCNT overflow
Figure 18.3 Operation in Interval Timer Mode
Overflow
WOVI
Overflow
WOVI
Interrupt Flag
OVF
Overflow
WOVI
Overflow
WOVI
DTC Activation
Impossible
Time