DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 654

• 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: -

Rev. 5.00 Mar. 06, 2009 Page 634 of 770
REJ09B0243-0500
⎯ Command (1 byte): Inquiry, selection, programming, erasure, checking, etc.
⎯ Response (1 byte): Response to an inquiry
⎯ Size (one or two bytes): The length of data for transfer, excluding the command/response
⎯ Data (n bytes): Particular data for the command or response
⎯ Checksum (1 byte): Set so that the total sum of byte values from the command code to the
⎯ Error response (1 byte): Error response to a command
⎯ Error code (1 byte): Indicates the type of error.
⎯ Address (4 bytes): Address for programming
⎯ Data (n bytes): Data to be programmed. "n" is known from the response to the command
⎯ Data size (4 bytes): Four-byte field included in the response to a memory reading
One-character command
or one-character response
n-character command
or n-character response
Error response
128-byte
programming command
Response to
memory read command
code, size, and checksum.
checksum and change lower one byte to H'00.
used to inquire about the programming size.
command.
Figure 17.17 Formats in the Communications Protocol
Command or response
Command
Response
Address
Data size
Data
Size
Command or response
Error code
Error response
Data (n bytes)
Data
Checksum
Checksum
Checksum