UPD78F1146AGB-GAH-AX Renesas Electronics America, UPD78F1146AGB-GAH-AX Datasheet - Page 173

• Manufacturer Part Number: UPD78F1146AGB-GAH-AX
• Description: MCU 16BIT 78K0R/KX3 64-LQFP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Kx3r

Specifications of UPD78F1146AGB-GAH-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: 50
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

5.6.4 Example of controlling internal low-speed oscillation clock
driven (240 kHz (TYP.)) if the watchdog timer operation is enabled by the option byte.
timer operates, the internal low-speed oscillation clock does not stop even in case of a program loop.
The internal low-speed oscillation clock cannot be used as the CPU clock. Used only as the watchdog timer clock.
The internal low-speed oscillator automatically starts oscillation after a reset release, and the watchdog timer is
The internal low-speed oscillator continues oscillation except when the watchdog timer stops. When the watchdog
(1) Example of setting procedure when stopping the internal low-speed oscillation clock
(2) Example of setting procedure when restarting oscillation of the internal low-speed oscillation clock
The internal low-speed oscillation clock can be stopped in the following two ways.
• Stop the watchdog timer in the HALT/STOP mode by the option byte (bit 0 (WDSTBYON) of 000C0H = 0),
• Stop the watchdog timer by the option byte (bit 4 (WDTON) of 000C0H = 0).
The internal low-speed oscillation clock can be restarted as follows.
• Release the HALT or STOP mode
and execute the HALT or STOP instruction.
(only when the watchdog timer is stopped in the HALT/STOP mode by the option byte (bit 0 (WDSTBYON)
of 000C0H) = 0) and when the watchdog timer is stopped as a result of execution of the HALT or STOP
instruction).
CHAPTER 5 CLOCK GENERATOR
User’s Manual U17854EJ9V0UD
171