UPD70F3451GC-UBT-A Renesas Electronics America, UPD70F3451GC-UBT-A Datasheet - Page 610

• Manufacturer Part Number: UPD70F3451GC-UBT-A
• Description: MCU 32BIT 128KB FLASH 80LQFP
• Manufacturer: Renesas Electronics America
• Series: V850E/Ix3r

Specifications of UPD70F3451GC-UBT-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 64MHz
• Connectivity: CSI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 44
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3.5 V ~ 5.5 V
• Data Converters: A/D 10x12b, 4x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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11.3 Control Registers
608
(1) Watchdog timer mode register (WDTM)
Cautions 1. For details of the WDCS2 to WDCS0 bits, see Table 11-2 Overflow Time.
The WDTM register sets the overflow time and operation clock of the watchdog timer.
This register can be read or written in 8-bit units. This register can be read any number of times, but can be
written only once following reset release; it cannot then be written a second or subsequent time.
Reset sets this register to 67H.
2. If the WDTM register is rewritten while the watchdog timer is counting, the counter of the
3. Be sure to clear bits 3, 4, and 7 to “0”.
WDTM
After reset: 67H
watchdog timer is cleared to 0000H.
WDCS2
0
0
0
0
1
1
1
1
WDM1
0
0
1
0
WDCS1
0
0
1
1
0
0
1
1
CHAPTER 11 WATCHDOG TIMER FUNCTIONS
WDM0
WDM1
R/W
0
1
×
WDCS0
Stop operation
Non-maskable interrupt request mode
(generation of INTWDT signal)
Reset mode (generation of WDTRES signal)
Table 11-2. Overflow Time
0
1
0
1
0
1
0
1
Address: FFFFF6D0H
User’s Manual U18279EJ3V0UD
WDM0
2
2
2
2
2
2
2
2
Selection of operation mode of watchdog timer
Overflow Time
19
20
21
22
23
24
25
26
/f
/f
/f
/f
/f
/f
/f
/f
XX
XX
XX
XX
XX
XX
XX
XX
0
8.2 ms
16.4 ms
32.8 ms
65.5 ms
131.1 ms
262.1 ms
524.3 ms
1,048.5 ms
0
f
XX
= 64 MHz
WDCS2
16.4 ms
32.8 ms
65.5 ms
131.1 ms
262.1 ms
524.3 ms
1,048.5 ms
2,097.1 ms
WDCS1
f
XX
= 32 MHz
WDCS0