HD64F7047F50 Renesas Electronics America, HD64F7047F50 Datasheet - Page 365

• Manufacturer Part Number: HD64F7047F50
• Description: IC SUPERH MCU FLASH 256K 100QFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7047r

Specifications of HD64F7047F50

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, SCI
• 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): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

11.4.2
To use the WDT as an interval timer, clear WT/IT to 0 and set TME to 1 in TCSR. An interval
timer interrupt (ITI) is generated each time the timer counter (TCNT) overflows. This function can
be used to generate interval timer interrupts at regular intervals.
Internal reset
signal*
WDTOVF
signal
WT/IT: Timer mode select bit
TME:
Note: * Internal reset signal occurs only when the RSTE bit is set to 1.
Interval Timer Mode
ITI: Interval timer interrupt request generation
H'00
H'FF
TCNT value
H'FF
H'00
Timer enable bit
TCNT value
WT/IT = 0
TME = 1
WT/IT = 1
TME = 1
Figure 11.2 Operation in Watchdog Timer Mode
Figure 11.3 Operation in Interval Timer Mode
Overflow
H'00 written
in TCNT
ITI
Overflow
WDTOVF and internal
reset generated
ITI
Overflow
WOVF = 1
128 φ clocks
512 φ clocks
Overflow
ITI
WT/IT = 1
TME = 1
Rev. 2.00, 09/04, page 323 of 720
Overflow
H'00 written
in TCNT
ITI
Time
Time