UPD70F3453GC-8EA-A Renesas Electronics America, UPD70F3453GC-8EA-A Datasheet - Page 611
UPD70F3453GC-8EA-A
Manufacturer Part Number
UPD70F3453GC-8EA-A
Description
MCU 32BIT 128KB FLASH 100LQFP
Manufacturer
Renesas Electronics America
Series
V850E/Ix3r
Datasheet
1.UPD70F3451GC-UBT-A.pdf
(1191 pages)
Specifications of UPD70F3453GC-8EA-A
Core Processor
RISC
Core Size
32-Bit
Speed
64MHz
Connectivity
CSI, EBI/EMI, I²C, UART/USART
Peripherals
DMA, LVD, PWM, WDT
Number Of I /o
56
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, 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Manufacturer
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Price
Company:
Part Number:
UPD70F3453GC-8EA-A
Manufacturer:
Renesas Electronics America
Quantity:
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11.4 Operation
After this, the operation of the watchdog timer cannot be stopped.
11.5 Caution
can be calculated from “Interval time set to WDTM register + 2
successively without the watchdog timer being cleared.
started is not included.
(2) Watchdog timer enable register (WDTE)
The watchdog timer is stopped after reset is released.
The WDTM register can be written only once after reset is released.
To use the watchdog timer, write the operation mode and the interval time to the WDTM register in 8-bit units.
To not use the watchdog timer, write 00H to the WDTM register.
The cycle of the non-maskable interrupt request signal (INTWDT) that is generated due to watchdog timer overflow
Note that the pulse width until generation of the first interrupt request signal after the watchdog timer has been
Cautions 1. If “ACH” is written to the WDTE register to enable the watchdog timer operation and then a
The counter of the watchdog timer is cleared and counting restarted by writing “ACH” to the WDTE register.
This register can be read or written in 8-bit units.
Reset sets this register to 1AH.
2. When the WDTE register is read or written in 1-bit units, an internal reset signal is output.
3. The read value of the WDTE register is “1AH” before the watchdog timer operates, and
WDTE
After reset: 1AH
value other than “ACH” is written to the WDTE register, a non-maskable interrupt request
signal (INTWDT) or a reset signal (WDTRES) is generated due to watchdog timer overflow,
depending on the specification of the WDTM.WDM1 and WDTM.WDM0 bits.
“9AH” after it operates. The value read from this register is different from the written value
(ACH).
CHAPTER 11 WATCHDOG TIMER FUNCTIONS
R/W
Address: FFFFF6D1H
User’s Manual U18279EJ3V0UD
7
peripheral clock pulse width”, if INTWDT occurs
609
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