HD64F2612FA20 Renesas Electronics America, HD64F2612FA20 Datasheet - Page 504

• Manufacturer Part Number: HD64F2612FA20
• Description: IC H8S MCU FLASH 128K 80QFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2600r

Specifications of HD64F2612FA20

• Core Processor: H8S/2600
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 43
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Section 18 ROM
18.7
A setting in the RAM emulation register (RAMER) enables part of RAM to be overlapped onto
the flash memory area so that data to be written to flash memory can be emulated in RAM in real
time. Emulation can be performed in user mode or user program mode. Figure 18.7 shows an
example of emulation of real-time flash memory programming.
1. Set RAMER to overlap part of RAM onto the area for which real-time programming is
2. Emulation is performed using the overlapping RAM.
3. After the program data has been confirmed, the RAMS bit is cleared, thus releasing the RAM
4. The data written in the overlapping RAM is written into the flash memory space (EB0).
Rev. 7.00 Sep. 11, 2009 Page 468 of 566
REJ09B0211-0700
required.
overlap.
Flash Memory Emulation in RAM
Figure 18.7 Flowchart for Flash Memory Emulation in RAM
No
Execute application program
Write tuning data to overlap
Start of emulation program
End of emulation program
Write to flash memory
emulation block
Clear RAMER
Set RAMER
Tuning OK?
RAM
Yes