DF2437FV Renesas Electronics America, DF2437FV Datasheet - Page 595

• Manufacturer Part Number: DF2437FV
• Description: IC H8S/2437 MCU FLASH 128QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2400r

Specifications of DF2437FV

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: I²C, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 128-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

20.1.5
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 register/parameter.
The procedure program should be created by the user in user program mode and user boot mode.
An overview of the procedure is given as follows. For details, see section 20.4.2, User Program
Mode.
(1) Selection of On-chip Program to be Downloaded
For programming/erasing execution, the FLSHE bit in SYSCR must be set to 1 to make a
transition to user program mode.
This LSI has programming/erasing programs which 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 register. The address of the download destination can be specified
by the flash transfer destination address register (FTDAR).
Programming/Erasing Interface
Figure 20.5 Overview of User Procedure Program
No
program for programming/erasing.
(downloaded program execution)
Programming (in 128-byte units)
(downloaded program execution)
by setting FKEY and SCO bits.
Select on-chip program to be
or erasing (in one-block units)
Download on-chip program
specify the destination.
End user procedure
Initialization execution
Start user procedure
Programming/erasing
downloaded and
completed?
program
Yes
Rev.2.00 May. 28, 2009 Page 555 of 732
REJ09B0059-0200