UPD70F3740GC-UEU-AX Renesas Electronics America, UPD70F3740GC-UEU-AX Datasheet - Page 410

• Manufacturer Part Number: UPD70F3740GC-UEU-AX
• Description: MCU 32BIT V850ES/JX3 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3r

Specifications of UPD70F3740GC-UEU-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 32MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

V850ES/JG3
11.1 Functions
R01UH0015EJ0300 Rev.3.00
Sep 30, 2010
Watchdog timer 2 has the following functions.
• Default-start watchdog timer
• Input selectable from main clock, internal oscillation clock, and subclock as the source clock
→ Reset mode: Reset operation upon overflow of watchdog timer 2 (generation of WDT2RES signal)
→ Non-maskable interrupt request mode: NMI operation upon overflow of watchdog timer 2 (generation of
Notes 1. Watchdog timer 2 automatically starts in the reset mode following reset release.
INTWDT2 signal)
2. For the non-maskable interrupt servicing due to a non-maskable interrupt request signal (INTWDT2), see
When watchdog timer 2 is not used, either stop its operation before reset is executed via this function, or
mode, interval time: f
19.2.2 (2) From INTWDT2 signal.
clear watchdog timer 2 once and stop it within the next interval time.
Also, write to the WDTM2 register for verification purposes only once, even if the default settings (reset
Note 2
CHAPTER 11 FUNCTIONS OF WATCHDOG TIMER 2
Note 1
R
/2
19
) do not need to be changed.
CHAPTER 11 FUNCTIONS OF WATCHDOG TIMER 2
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