DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 668

• 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: -

• Programming/Erasure State
In this state, the boot program must select the form of programming corresponding to the
programming-selection command and then write data in response to 128-byte programming
commands, or perform erasure in block units in response to the erasure-selection and block-
erasure commands.
The programming and erasure commands are listed in table 17.13.
Table 17.13 Programming and Erasure Commands
• Programming
Programming is performed by issuing a programming-selection command and the 128-byte
programming command.
Firstly, the host issues the programming-selection command to select the MAT to be programmed
and programming by the method.
Next, the host issues a 128-byte programming command. 128 bytes of data for programming by
the method selected by the preceding programming selection command are expected to follow the
command. To program more than 128 bytes, repeatedly issue 128-byte programming commands.
To terminate programming, the host should send another 128-byte programming command with
the address H'FFFFFFFF. On completion of programming, the boot program waits for the next
programming/erasure selection command.
To then program the other MAT, start by sending the programming select command.
Rev. 5.00 Mar. 06, 2009 Page 648 of 770
REJ09B0243-0500
Command
H'43
H'50
H'48
H'58
H'52
H'4B
H'4D
H'4F
Command Name
Selection of user MAT
programming
128-byte programming Executes 128-byte programming.
Erasure selection
Block erasure
Memory read
MAT
Blank checking of user
MAT
Inquiry on boot
program state
Sum checking of user
Function
Selects transfer of the program for user MAT programming.
Selects transfer of the erasure program.
Reads from memory.
Executes sum checking of the user MAT.
Executes blank checking of the user MAT.
Requests information on the state of boot processing.
Executes erasure of the specified block.