M306N4FGTFP Renesas Electronics America, M306N4FGTFP Datasheet - Page 280

• Manufacturer Part Number: M306N4FGTFP
• Description: IC M16C MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/6Nr

Specifications of M306N4FGTFP

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 20MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 85
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 26x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

M16C/6N Group (M16C/6N4)
Rev.2.40
REJ09B0009-0240
21.3.1 EW0 Mode
21.3.2 EW1 Mode
The MCU enters CPU rewrite mode by setting the FMR01 bit in the FMR0 register to 1 (CPU rewrite mode
enabled) and is ready to accept commands. EW0 mode is selected by setting the FMR11 bit in the FMR1
register to 0. To set the FMR01 bit to 1, set to 1 after first writing 0.
The software commands control programming and erasing. The FMR0 register or the status register
indicates whether a program or erase operation is completed as expected or not.
EW1 mode is selected by setting FMR11 bit to 1 (by writing 0 and then 1 in succession) after setting the
FMR01 bit to 1 (by writing 0 and then 1 in succession). (Both bits must be set to 0 first before setting to 1.)
The FMR0 register indicates whether or not a program or erase operation has been completed as
expected. The status register cannot be read in EW1 mode.
When an erase/program operation is initiated the CPU halts all program execution until the operation is
completed or erase-suspend is requested.
Apr 14, 2006
page 256 of 376
21. Flash Memory Version