R5F212D8SNFP#U0 Renesas Electronics America, R5F212D8SNFP#U0 Datasheet - Page 177

• Manufacturer Part Number: R5F212D8SNFP#U0
• Description: IC R8C/2D MCU FLASH 64KB 80-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/2x/2Dr

Specifications of R5F212D8SNFP#U0

• Core Processor: R8C
• Core Size: 16/32-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SIO, SSU, UART/USART
• Peripherals: POR, PWM, Voltage Detect, WDT
• Number Of I /o: 71
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 3K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 5.5 V
• Data Converters: A/D 20x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-LQFP
• For Use With: R0K5212D8S001BE - KIT STARTER FOR R8C/2DR0K5212D8S000BE - KIT DEV FOR R8C/2D
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/2C Group, R8C/2D Group
Rev.2.00
REJ09B0339-0200
Figure 13.2
Watchdog Timer Reset Register
Watchdog Timer Start Register
Watchdog Timer Control Register
b7
NOTES:
b7
b7 b6 b5 b4
1.
2.
0 0
Do not generate an interrupt betw een w hen 00h and FFh are w ritten.
When the CSPRO bit in the CSPR register is set to 1 (count source protection mode enabled),
0FFFh is set in the w atchdog timer.
Dec 05, 2007
b3 b2 b1 b0
Registers WDTR, WDTS, and WDC
b0
b0
When 00h is w ritten before w riting FFh, the w atchdog timer is reset.
The default value of the w atchdog timer is 7FFFh w hen count source protection
mode is disabled and 0FFFh w hen count source protection mode is enabled.
The w atchdog timer starts counting after a w rite instruction to this register.
Bit Symbol
(b4-b0)
Symbol
Symbol
Symbol
WDTR
WDTS
WDC7
WDC
(b5)
(b6)
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—
—
—
High-order bits of w atchdog timer
Reserved bit
Reserved bit
Prescaler select bit
Address
Address
Address
Bit Name
000Dh
000Eh
000Fh
Set to 0. When read, the content is undefined.
Set to 0.
0 : Divide-by-16
1 : Divide-by-128
Function
Function
After Reset
After Reset
After Reset
00X11111b
Undefined
Undefined
Function
(1)
(2)
13. Watchdog Timer
WO
WO
RW
RW
RW
RW
RW
RW
RO