R5F212D8SNFP#U0 Renesas Electronics America, R5F212D8SNFP#U0 Datasheet - Page 531

• 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 20.9
Figure 20.10
EW0 Mode Operating Procedure
NOTES:
Jump to the rewrite control program which has been
transferred to the RAM.
(The subsequent process is executed by the rewrite
control program in the RAM.)
Transfer a rewrite control program which uses CPU
rewrite mode to the RAM.
Figure 20.9 shows How to Set and Exit EW0 Mode. Figure 20.10 shows How to Set and Exit EW1 Mode.
Figure 20.11 shows Process to Reduce Power Consumption in High-Speed On-Chip Oscillator Mode, Low-
Speed On-Chip Oscillator Mode (XIN Clock Stops) and Low-Speed Clock Mode (XIN Clock Stops).
1. Select 5 MHz or below for the CPU clock by the CM06 bit in the CM0 register and bits CM16 to CM17 in the CM1 register.
2. To set the FMR01 bit to 1, write 0 to the FMR01 bit before writing 1. Do not generate an interrupt between writing 0 and 1.
3. Disable the CPU rewrite mode after executing the read array command.
Dec 05, 2007
Write to the FMR01 bit in the RAM.
Set registers
How to Set and Exit EW0 Mode
How to Set and Exit EW1 Mode
EW1 Mode Operating Procedure
(1)
Page 508 of 585
CM0 and CM1
NOTE:
1.To set the FMR01 bit to 1, write 0 to the FMR01 bit before writing 1.
Do not generate an interrupt between writing 0 and 1.
Write 0 to the FMR01 bit before writing 1 (CPU
rewrite mode enabled)
Write 0 to the FMR11 bit before writing 1 (EW1
mode)
Execute software commands
(CPU rewrite mode disabled)
Write 0 to the FMR01 bit
Program in ROM
Rewrite control program
(1)
Jump to a specified address in the flash memory
Write 0 to the FMR01 bit before writing 1
Execute the read array command
(CPU rewrite mode enabled)
Execute software commands
(CPU rewrite mode disabled)
Write 0 to the FMR01 bit
20. Flash Memory
(2)
(3)