R5F211B1SP#U0 Renesas Electronics America, R5F211B1SP#U0 Datasheet - Page 277

• Manufacturer Part Number: R5F211B1SP#U0
• Description: IC R8C MCU FLASH 4K 20SSOP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/R8C/Tiny/1Br

Specifications of R5F211B1SP#U0

• Core Processor: R8C
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SIO, SSU, UART/USART
• Peripherals: LED, POR, Voltage Detect, WDT
• Number Of I /o: 13
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 384 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-SSOP
• For Use With: R0K5211B4S001BE - KIT STARTER FOR R8C/18191A1BR0K5211B4S000BE - KIT DEV EVALUATION R8C/1BR0E521174CPE10 - EMULATOR COMPACT R8C/18/19/1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/1A Group, R8C/1B Group
Rev.1.30
REJ09B0252-0130
Figure 18.9
Figure 18.10
EW0 Mode Operating Procedure
Jump to the rewrite control program which has been
transferred to any area other than the flash memory.
(The subsequent process is executed by the rewrite
control program in an area other than the flash
memory.)
Transfer a rewrite control program which uses CPU
rewrite mode to any area other than the flash
memory.
Figure 18.9 shows How to Set and Exit EW0 Mode. Figure 18.10 shows How to Set and Exit EW1 Mode.
NOTES :
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 08, 2006
Set registers CM0 and CM1
How to Set and Exit EW0 Mode
How to Set and Exit EW1 Mode
EW1 Mode Operating Procedure
Page 259 of 315
NOTE :
1. To set the FMR01 bit to 1, write 0 to the FMR01 bit before writing 1.
(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
Jump to a specified address in the flash memory
Write 0 to the FMR01 bit before writing 1
Execute the read array command
(1)
(CPU rewrite mode enabled)
Execute software commands
(CPU rewrite mode disabled)
Write
0
to the FMR01 bit
18. Flash Memory
(2)
(3)