R5F21356CNFP#U0 Renesas Electronics America, R5F21356CNFP#U0 Datasheet - Page 677

• Manufacturer Part Number: R5F21356CNFP#U0
• Description: MCU 1KB FLASH 32K ROM 52-LQFP
• Manufacturer: Renesas Electronics America
• Series: R8C/3x/35Cr

Specifications of R5F21356CNFP#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: 47
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.5K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 52-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

R8C/35C Group
REJ09B0567-0100 Rev.1.00 Dec. 14, 2009
Page 644 of 725
Figure 31.12
Notes:
1. The interrupt vector table and interrupt routine for interrupts to be used must be allocated to an area other the erase target area.
2. td(SR-SUS) is required until suspend is acknowledged after the FMR21 bit is set to 1.
The interrupt to enter suspend must be enabled beforehand.
Write the command code 20h
Write D0h to any block address
Block Erase Flowchart (Flash Ready Status Interrupt Disabled and Suspend Enabled)
I = 1 (interrupt enabled)
Block erase completed
Full status check
FMR20 = 1
FST7 = 1?
Start
Yes
No
Access the flash memory
Maskable interrupt
FMR21 = 1
FMR21 = 0
FST7 = 1?
REIT
Yes
I: Flag in CPU register
FST7: Bits in FST register
FMR20, FMR21: Bits in FMR2 register
(2)
(1)
No
31. Flash Memory