DF70844AD80FPV Renesas Electronics America, DF70844AD80FPV Datasheet - Page 1332

• Manufacturer Part Number: DF70844AD80FPV
• Description: IC SUPERH MCU FLASH 112LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7080r

Specifications of DF70844AD80FPV

• Core Size: 32-Bit
• Program Memory Size: 256KB (256K x 8)
• Core Processor: SH-2
• Speed: 80MHz
• Connectivity: EBI/EMI, FIFO, I²C, SCI, SSU
• Peripherals: DMA, POR, PWM, WDT
• Number Of I /o: 76
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 112-LQFP
• No. Of I/o's: 76
• Ram Memory Size: 16KB
• Cpu Speed: 80MHz
• Digital Ic Case Style: LQFP
• Supply Voltage Range: 3V To 3.6V, 4.5V To 5.5V
• Embedded Interface Type: I2C, SCI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: R0K570865S001BE - KIT STARTER FOR SH7086R0K570865S000BE - KIT STARTER FOR SH7086HS0005KCU11H - EMULATOR E10A-USB H8S(X),SH2(A)
• Eeprom Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Section 23 Flash Memory
23.7
To provide real-time emulation in RAM of data that is to be written to the flash memory, a part of
the RAM can be overlaid on an area of flash memory (user MAT) that has been specified by the
RAM emulation register (RAMER). After the RAMER setting is made, the RAM is accessible in
both the user MAT area and as the RAM area that has been overlaid on the user MAT area. Such
emulation is possible in user mode and user program mode.
Figure 23.17 shows an example of the emulation of realtime programming of the user MAT area.
Rev. 3.00 May 17, 2007 Page 1274 of 1582
REJ09B0181-0300
Flash Memory Emulation in RAM
Figure 23.17 Emulation of Flash Memory in RAM
No
Program the emulation block
Execute application program
Write the data for tuning to
Start of emulation program
End of emulation program
the overlapped RAM area
Cancel RAMER setting
in the user MAT
Set RAMER
Tuning OK?
Yes