R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 1125

• Manufacturer Part Number: R4F24268NVFQV
• Description: MCU 256K FLASH 48K 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of R4F24268NVFQV

• Core Processor: H8S/2600
• Core Size: 16/32-Bit
• Speed: 33MHz
• Connectivity: EBI/EMI, I²C, IrDA, SCI, SSU, UART/USART
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

H8S/2426, H8S/2426R, H8S/2424 Group
21.4.6
This command checks if a block is blank (the erased state).
Write H'25xx in the first bus cycle and H'D0xx to the lowest address (an even address) of the
target block in the second cycle; the check result will be stored in the FMERSF bit in FLMSTR.
After the FMRDY bit in FLMSTR has become 1 (ready), read the FMERSF bit.
Figure 21.5 shows a flowchart of the block blank check command processing.
REJ09B0466-0350 Rev. 3.50
Jul 09, 2010
Block Blank Check
Figure 21.5 Flowchart of Block Blank Check Command Processing
Note: Write the command code and data to even addresses.
Write command code "H'25xx".
Write "H'D0xx" to the lowest
address of the block.
FMRDY = 1?
FMERSF = 0?
Blank
Start
YES
YES
NO
NO
Not blank
Section 21 Flash Memory
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