R4F24268NVFQV Renesas Electronics America, R4F24268NVFQV Datasheet - Page 1158

• 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: -

Section 21 Flash Memory
(12) User ROM Sum Check
The boot program will add all the data bytes in the user ROM area and return the result in
response to a user ROM sum check command.
• Command, H'4B, (1 byte): Sum check for user ROM
• Response, H'5B, (1 byte): Response to the user ROM sum check
• Size (1 byte): The number of bytes that represents the checksum
• Checksum of user ROM (4 bytes): Result of checksum calculation for the user ROM area; the
• SUM (1 byte): Sum check for data being transmitted
(13) Data Flash Sum Check
The boot program will add all the data bytes in the data flash area and return the result in response
to a data flash sum check command.
• Command, H'61, (1 byte): Sum check for data flash
• Response, H'71, (1 byte): Response to the data flash sum check
• Size (1 byte): The number of bytes that represents the checksum
• Checksum of data flash (4 bytes): Result of checksum calculation for the data flash area; the
• SUM (1 byte): Checksum value that makes the sum of the bytes from the command to the
Page 1128 of 1372
Command
Response
Command
Response
total of all the data in the ROM, in byte units.
total of all the data in the data flash, in byte units.
SUM byte become H'00.
This is fixed to 4.
This is fixed to 4.
H'5B
H'71
H'4B
H'61
Size
Size
Checksum of user ROM
Checksum of data flash
H8S/2426, H8S/2426R, H8S/2424 Group
REJ09B0466-0350 Rev. 3.50
SUM
SUM
Jul 09, 2010