UPD78F1000GB-GAF-AX Renesas Electronics America, UPD78F1000GB-GAF-AX Datasheet - Page 546
UPD78F1000GB-GAF-AX
Manufacturer Part Number
UPD78F1000GB-GAF-AX
Description
MCU 16BIT 78K0R/KX3-L 44-LQFP
Manufacturer
Renesas Electronics America
Series
78K0R/Kx3-Lr
Datasheet
1.UPD78F1000GB-GAF-AX.pdf
(1171 pages)
Specifications of UPD78F1000GB-GAF-AX
Core Processor
78K/0R
Core Size
16-Bit
Speed
20MHz
Connectivity
3-Wire SIO, I²C, LIN, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
33
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
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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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD78F1000GB-GAF-AX
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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78K0R/Kx3-L
12.3 Register Controlling Watchdog Timer
R01UH0106EJ0300 Rev.3.00
Oct 01, 2010
The watchdog timer is controlled by the watchdog timer enable register (WDTE).
(1) Watchdog timer enable register (WDTE)
Writing “ACH” to the WDTE register clears the watchdog timer counter and starts counting again.
This register can be set by an 8-bit memory manipulation instruction.
Reset signal generation sets this register to 9AH or 1AH
Note The WDTE register reset value differs depending on the WDTON bit setting value of the option byte
Cautions 1. If a value other than “ACH” is written to the WDTE register, an internal reset signal is
Address: FFFABH
Symbol
WDTE
(000C0H). To operate watchdog timer, set the WDTON bit to 1.
2. If a 1-bit memory manipulation instruction is executed for the WDTE register, an internal reset
3. The value read from the WDTE register is 9AH/1AH (this differs from the written value (ACH)).
generated.
signal is generated.
0 (watchdog timer count operation disabled)
1 (watchdog timer count operation enabled)
7
Figure 12-2. Format of Watchdog Timer Enable Register (WDTE)
After reset: 9AH/1AH
WDTON Bit Setting Value
6
5
Note
R/W
4
Note
.
1AH
9AH
3
WDTE Register Reset Value
CHAPTER 12 WATCHDOG TIMER
2
1
0
546
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