DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 674

• Manufacturer Part Number: DF71251AD50FPV
• Description: MCU RISC FLASH 32K 8K 64LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH Tinyr

Specifications of DF71251AD50FPV

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 37
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

On receiving the command with H'FF as the block number, the boot program stops erasure
processing and waits for the next programming/erasure selection command.
To perform erasure again after having issued the command with the block number specified as
H'FF, execute the process from the selection of erasure.
• Memory read
In response to the memory read command, the boot program returns the data from the specified
address.
Rev. 5.00 Mar. 06, 2009 Page 654 of 770
REJ09B0243-0500
Error
response
Command
Response
Command
⎯ Error response H'D8 (1 byte): Error response to the block erasure command
⎯ ERROR (1 byte): Error code
⎯ Command H'58 (1 byte): Erasure of a block
⎯ Size (1 byte): The number of characters in the block number field (fixed at 1)
⎯ Block number (1 byte): H'FF (erasure terminating code)
⎯ SUM (1 byte): Checksum
⎯ Response H'06 (1 byte): ACK code to indicate response to the request for termination of
⎯ Command H'52 (1 byte): Memory read
⎯ Size (1 byte): The total length of the area, address for reading, and amount to read fields
H'11: Sum-check error
H'29: Block number error (the specified block number is incorrect.)
H'51: Erasure error (an error occurred during erasure.)
erasure
(fixed value of 9)
H'D8
H'58
H'06
H'52
Amount to read
ERROR
Size
Size
Area
Block number
First address for reading
SUM
SUM