DF2170VTE33 Renesas Electronics America, DF2170VTE33 Datasheet - Page 466

• Manufacturer Part Number: DF2170VTE33
• Description: MCU 3V 256K 100-TQFP
• Manufacturer: Renesas Electronics America
• Series: H8® H8S/2100r

Specifications of DF2170VTE33

• Core Processor: H8S/2000
• Core Size: 16-Bit
• Speed: 33MHz
• Connectivity: SCI, USB
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 76
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -20°C ~ 75°C
• Package / Case: 100-TQFP, 100-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -
• Other names: HD64F2170VTE33; HD64F2170VTE33

14.7
14.7.1
Making 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
realtime. After the RAMER setting has been made, accesses can be made from the flash memory
area or the RAM area overlapping flash memory. Emulation can be performed in user mode and
user program mode. Figure 14.18 shows an example of emulation of realtime flash memory.
Rev. 2.00, 03/04, page 432 of 534
Flash Memory Emulation in RAM
Emulation in RAM
Figure 14.18 Flowchart for Flash Memory Emulation in RAM
No
Write to flash memory emulation block
Write tuning data to overlap RAM
Execute application program
Start of emulation program
End of emulation program
Clear RAMER
Set RAMER
Tuning OK?
Yes