DF70845AD80FPV Renesas Electronics America, DF70845AD80FPV Datasheet - Page 1338

• Manufacturer Part Number: DF70845AD80FPV
• Description: IC SUPERH MCU FLASH 112LQFP
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7080r

Specifications of DF70845AD80FPV

• Core Size: 32-Bit
• Program Memory Size: 512KB (512K 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: 32K 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: 32KB
• 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
(2) Interrupts during programming/erasing
Rev. 3.00 May 17, 2007 Page 1280 of 1582
REJ09B0181-0300
Though an interrupt processing can be executed at realtime during programming/erasing of the
downloaded on-chip program, the following limitations and notes are applied.
1. When flash memory is being programmed or erased, both the user MAT and user boot
2. Do not rewrite the program data specified by the FMPDR parameter. If new program data
3. Make sure the interrupt processing routine does not rewrite the contents of the flash-
4. At the beginning of the interrupt processing routine, save the CPU register contents. Before
5. When a transition is made to sleep mode or software standby mode in the interrupt
MAT cannot be accessed. Prepare the interrupt vector table and interrupt processing
routine in on-chip RAM or external memory. Make sure the flash memory being
programmed or erased is not accessed by the interrupt processing routine. If flash memory
is read, the read values are not guaranteed. If the relevant bank in flash memory that is
being programmed or erased is accessed, the error protection state is entered, and
programming or erasing is aborted. If a bank other than the relevant bank is accessed, the
error protection state is not entered but the read values are not guaranteed.
is to provided by the interrupt processing, temporarily save the new program data in
another area. After confirming the completion of programming, save the new program data
in the area specified by FMPDR or change the setting in FMPDR to indicated the other
area in which the new program data was temporarily saved.
memory related registers or data in the downloaded on-chip program area. During the
interrupt processing, do not simultaneously perform RAM emulation, download of the on-
chip program by an SCO request, or programming/erasing.
returning from the interrupt processing, write the saved contents in the CPU registers again.
processing routine, the error protection state is entered and programming/erasing is
aborted.
If a transition is made to the reset state, the reset signal should only be released after
providing a reset input over a period longer than the normal 100 µs to reduce the damage to
flash memory.