HD64F3026X25 Renesas Electronics America, HD64F3026X25 Datasheet - Page 584

• Manufacturer Part Number: HD64F3026X25
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8/300Hr

Specifications of HD64F3026X25

• Core Processor: H8/300H
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: SCI, SmartCard
• Peripherals: PWM, WDT
• Number Of I /o: 70
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 18 Flash Memory [H8/3024F-ZTAT Version]
Example of User Program Mode Operation
Rev. 2.00 Sep 20, 2005 page 544 of 800
REJ09B0260-0200
1. Initial state
3. Flash memory initialization
The FWE assessment program that confirms
that user program mode has been entered, and
the program that will transfer the programming/
erase control program from flash memory to
on-chip RAM should be written into the flash
memory by the user beforehand. The
programming/erase control program should be
prepared in the host or in the flash memory.
The programming/erase program in RAM is
executed, and the flash memory is initialized (to
H'FF). Erasing can be performed in block units,
but not in byte units.
H8/3024F-ZTAT version
H8/3024F-ZTAT version
FWE assessment program
Application program
FWE assessment program
Flash memory
Flash memory
Flash memory
Boot program
Boot program
Transfer program
Transfer program
(old version)
erase
Programming/erase
New application
New application
control program
program
program
Host
Host
Programming/erase
control program
RAM
RAM
SCI
SCI
2. Programming/erase control program transfer
4. Writing new application program
When user program mode is entered, user
software recognizes this fact, executes the
transfer program in the flash memory, and
transfers the programming/erase control
program to RAM.
Next, the new application program in the host is
written into the erased flash memory blocks.
Do not write to unerased blocks.
H8/3024F-ZTAT version
H8/3024F-ZTAT version
FWE assessment program
Application program
FWE assessment program
New application
Flash memory
Flash memory
Boot program
Boot program
Transfer program
Transfer program
(old version)
program
New application
program
Host
Host
Program execution state
Programming/erase
Programming/erase
control program
control program
RAM
RAM
SCI
SCI