M306N4FGTFP Renesas Electronics America, M306N4FGTFP Datasheet - Page 281

• 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 21.4 Registers FMR0 and FMR1
21.3.3 Registers FMR0 and FMR1
Figure 21.4 shows Registers FMR0 and FMR1.
NOTES:
NOTE:
Apr 14, 2006
Flash Memory Control Register 0
Flash Memory Control Register 1
b7
b7
0
1.This status includes writing or reading with the lock bit program or read lock bit status command.
2. To set this bit to 1, write 0 and then 1 in succession. Make sure no interrupts or no DMA transfers will occur before
3. To set this bit to 1, write 0 and then 1 in succession when the FMR01 bit = 1. Make sure no interrupts or no DMA
4. Write to this bit from a program in other than the flash memory.
5. Effective when the FMR01 bit = 1 (CPU rewrite mode). If the FMR01 bit = 0, although the FMSTP bit can be set to
6. This bit is set to 0 by executing the clear status command.
1. To set this bit to 1, write 0 and then 1 in succession when the FMR01 bit in the FMR0 register = 1. Make sure no
b6
b6
writing 1 after writing 0.
Write to this bit when the NMI pin is in the high state. Also, while in EW0 mode, write to this bit from a program in
other than the flash memory.
Enter read array mode and set this bit to 0.
transfers will occur before writing 1 after writing 0.
1 by writing 1 in a program, the flash memory is neither placed in low power dissipation state nor initialized.
interrupts or no DMA transfers will occur before writing 1 after writing 0.
Write to this bit when the NMI pin is in the high state.
Both the FMR01 and FMR11 bits are set to 0 by setting the FMR01 bit to 0.
0
b5
b5
b4
0
b4
0
b3
b3
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b2
b2
b1
b1
b0
b0
Bit Symbol
Bit Symbol
FMSTP
FMR00
FMR01
FMR02
FMR05
FMR07
FMR11
FMR06
(b3-b2)
(b5-b4)
FMR16
(b4)
(b0)
(b7)
Symbol
-
Symbol
-
-
-
-
FMR0
FMR1
CPU rewrite mode
select bit
EW1 mode select bit
RY/BY status flag
Lock bit disable select
bit
User ROM area select
bit
(Effective in only boot mode)
Flash memory stop
bit
Reserved bit
Program status flag
Erase status flag
Reserved bit
Reserved bits
Reserved bits
Lock bit status flag
Reserved bit
(3)
(4)
(4) (5)
Bit Name
Bit Name
(2)
Address
Address
01B7h
01B5h
(6)
(6)
(1)
After Reset
0 : Busy (being written or erased)
1 : Ready
0 : CPU rewrite mode disabled
1 : CPU rewrite mode enabled
0: Lock bit enabled
1: Lock bit disabled
0 Flash memory operation enabled
1: Flash memory operation stops
Set to 0
0 : Boot ROM area is accessed
1 : User ROM area is accessed
0 : Terminated normally
1 : Terminated in error
0 : Terminated normally
1 : Terminated in error
After Reset
0X00XX0Xb
When read, the content is undefined.
0 : EW0 mode
1 : EW1 mode
When read, the content is undefined.
Set to 0
0 : Lock
1 : Unlock
Set to 0
00000001b
(placed in low power dissipation mode,
Function
flash memory initialized)
Function
21. Flash Memory Version
(1)
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RO
RO
RO
RO
RO
RO