DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 666

• 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: -

(11) Transition to the programming/erasure state
In response to the transition to the programming/erasure state command, the boot program
transfers the erasing program and runs it to erase any data in the user MAT. On completion of this
erasure, the boot program returns the ACK code and enters the programming/erasure state.
Before sending the programming selection command and data for programming, the host must
select the device, clock mode, and new bit rate for the LSI by issuing the device selection
command, clock-mode selection command, new-bit-rate selection command, and then initiate the
transition to the programming/erasure state by sending the corresponding command to the boot
program.
Rev. 5.00 Mar. 06, 2009 Page 646 of 770
REJ09B0243-0500
Command
Response
Error
response
⎯ Command H'40 (1 byte): Transition to programming/erasure state
⎯ Response H'06 (1 byte): Response to the transition-to-programming/erasure state command
⎯ Error response H'C0 (1 byte): Error response to the transition-to-programming/erasure state
⎯ ERROR (1 byte): Error code
This is returned as ACK when erasure of the user MAT has succeeded after transfer of the
erasure program.
command
H'51: Erasure error (Erasure did not succeed because of an error.)
H'40
H'06
H'C0
H'51