M306N4FGTFP Renesas Electronics America, M306N4FGTFP Datasheet - Page 292

• 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
Figure 21.11 Read Lock Bit Status Command
21.3.5.8 Read Lock Bit Status Command (71h)
The read lock bit status command reads the lock bit state of a specified block.
By writing xx71h in the first bus cycle and xxD0h to the highest-order even address of a block in the
second bus cycle, the FMR16 bit in the FMR1 register stores information on whether or not the lock bit
of a specified block is locked. Read the FMR16 bit after the FMR00 bit in the FMR0 register is set to 1
(ready).
Figure 21.11 shows a flow chart of the Read Lock Bit Status Command.
Apr 14, 2006
page 268 of 376
NOTE:
Write xxD0h to the highest-order
block address
Write the command code xx71h
1.Write the command code and data to even addresses.
Block is locked
FMR00=1?
FMR16=0?
Start
YES
YES
NO
NO
Block is not locked
21. Flash Memory Version