R4F24268NVRFQV Renesas Electronics America, R4F24268NVRFQV Datasheet - Page 1158
R4F24268NVRFQV
Manufacturer Part Number
R4F24268NVRFQV
Description
MCU 256KB FLASH 48K 144-LQFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2400r
Datasheet
1.R4F24268NVZFQV.pdf
(1406 pages)
Specifications of R4F24268NVRFQV
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
-
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R4F24268NVRFQV
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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
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