DF71251AD50FPV Renesas Electronics America, DF71251AD50FPV Datasheet - Page 605

• 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: -

17.2.6
Programming/erasing is executed by downloading the on-chip program to the on-chip RAM and
specifying the program address/data and erase block by using the interface registers/parameters.
The procedure program is made by the user in user program mode. The overview of the procedure
is as follows. For details, see section 17.5.2, User Program Mode (Only in On-Chip 128-Kbyte
and 64-Kbyte ROM Version).
(1) Selection of On-Chip Program to be Downloaded and Setting of Download Destination
This LSI has programming/erasing programs and they can be downloaded to the on-chip
RAM. The on-chip program to be downloaded is selected by setting the corresponding bits in
the programming/erasing interface registers. The download destination can be specified by
FTDAR.
Programming/Erasing Interface
Figure 17.5 Overview of User Procedure Program
No
set download destination
(on-chip program execution)
(on-chip program execution)
Select on-chip program
Programming (in 128-byte
to be downloaded and
program by setting VBR,
End user procedure
programming/erasing.
Initialization execution
Start user procedure
FKEY, and SCO bits.
units) or erasing (in
Download on-chip
one-block units)
Programming/
program for
completed?
program
Yes
erasing
Rev. 5.00 Mar. 06, 2009 Page 585 of 770
REJ09B0243-0500