HD64F7047FW40V Renesas Electronics America, HD64F7047FW40V Datasheet - Page 604

• Manufacturer Part Number: HD64F7047FW40V
• Description: MCU 5V 256K I-TEMP,PB-FREE 100-Q
• Manufacturer: Renesas Electronics America
• Series: SuperH® SH7047r

Specifications of HD64F7047FW40V

• Core Processor: SH-2
• Core Size: 32-Bit
• Speed: 40MHz
• Connectivity: CAN, SCI
• Peripherals: POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

19.6.2
On-board programming/erasing of an individual flash memory block can also be performed in user
program mode by branching to a user program/erase control program. The user must set branching
conditions and provide on-board means of supplying programming data. The flash memory must
contain the user program/erase control program or a program that provides the user program/erase
control program from external memory. As the flash memory itself cannot be read during
programming/erasing, transfer the user program/erase control program to on-chip RAM or
external memory. Figure 19.6 shows a sample procedure for programming/erasing in user program
mode. Prepare a user program/erase control program in accordance with the description in section
19.8, Flash Memory Programming/Erasing.
Rev. 2.00, 09/04, page 562 of 720
Note: * Do not constantly apply a low level to the FWP pin. Only apply a low level to the FWP pin when
Figure 19.6 Programming/Erasing Flowchart Example in User Program Mode
programming or erasing the flash memory. To prevent excessive programming or excessive erasing,
while a low level is being applied to the FWP pin, activate the watchdog timer in case of handling CPU
runaways.
Programming/Erasing in User Program Mode
Execute user program/erase control
program (flash memory rewrite)
Branch to user program/erase
Transfer user program/erase
control program to RAM
control program in RAM
Branch to flash memory
application program
Program/erase?
FWP = low*
FWP = high
Reset-start
Yes
No
Branch to flash memory
application program