M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 200

• Manufacturer Part Number: M30245FCGP#U1
• Description: IC M16C/24 MCU FLSH 128K 100LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/20r

Specifications of M30245FCGP#U1

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: I²C, SPI, SSI, UART/USART, USB
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 82
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-LQFP
• Package: 100LQFP
• Family Name: R8C
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3 V
• Data Bus Width: 16 Bit
• Number Of Programmable I/os: 82
• Interface Type: USB/UART/I2C/SPI
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

M30245 Group
Figure 1.150. Flash memory control register
Figure 1.151. CPU rewrite mode set/reset flowchart
Rev.2.00
REJ03B0005-0200
Oct 16, 2006
Flash memory control register 0
b7
b6
page 198 of 264
b5
b4
0
Note 1: During CPU rewrite mode, set the main clock frequency to 6.25MHz or less using the main clock division
Note 2: For CPU rewrite mode select bit to be set to "1", the user needs to write a "0" and then a "1" to it in
Note 3: Before exiting the CPU rewrite mode after completing erase or program operation, always be sure to
Note 4: "1" can be set. However, when this bit is "1", user ROM area is accessed.
(Subsequent operations are executed by control
b3
Jump to transferred control program in RAM
Single-chip mode, memory expansion
Set processor mode register (Note 1)
b2
register (addresses 0006
succession. When it is not this procedure, it is not enacted in "1". This is necessary to ensure that no
interrupt or DMA transfer will be executed during the interval. Use the program except in the internal
flash memory for write to this bit. Also write to this bit when NMI pin is "H" level.
execute a read array command or reset the flash memory
Transfer CPU rewrite mode control
b1
program to internal RAM
program in this RAM)
mode, or boot mode
Program in ROM
b0
Note 1: To set this bit to "1", the user must write "0" and then "1" to it in succession. This bit is not
Note 2: To set this bit to "1", the user must write "0" and then "1" to it in succession when the CPU
Note 3: Effective only when CPU rewrite mode select bit "1". Set this bit to "1" and then "0" in
Note 4: Effective only in boot mode. Use a control program that is not in the internal flash memory
FMR00
FMR01
FMR02
FMR03
Reserved
FMR05
Nothing is assigned. Write "0" when writing to these bits.
The value is indeterminate if read.
Start
Bit Symbol
*1
Symbol
FMR0
set to "1" unless this sequence has been performed. This is necessary to ensure that no
interrupt or DMA transfer are executed during the interval. Use the control program except
in the internal flash memory for writing to this bit. Also, write to this bit when the NMI pin
is "H" level.
rewrite mode select bit = "1". This bit is not set to "1" unless this sequence has been
performed. This is necessary to ensure that no interrupt or DMA transfer are executed
during the interval.
succession.
when writing to this bit.
16
and 0007
RY/BY status bit
CPU rewrite mode select bit
(Note 1)
Lock bit disable bit
(Note 2)
Flash memory reset bit
(Note 3)
User ROM area select bit
(Note 4).
Bit Name
16
).
.
Execute read array command or reset flash
memory by setting flash memory reset bit (by
writing "1" and then "0" in succession) (Note 3)
Set CPU rewrite mode select bit to "1" (by
writing "0" and then "1" in succession)(Note 2)
(Boot mode only)
Write "0" to user ROM area select bit (Note 4)
Using software command execute erase,
program, or other operation
(Set lock bit disable bit as required)
Write "0" to CPU rewrite mode select bit
(Boot mode only)
Set user ROM area select bit to "1"
Address
02F7
0 : Busy (overwrite or erase)
1 : Ready
0 : Normal mode
(invalid software commands)
1 : CPU rewrite mode
(software command accepted)
0 : Enabled
1 : Disabled
0 : Normal operation
1 : Reset
Must always be "0"
0 : Boot ROM area accessed
1 : User ROM area accessed
16
Program in RAM
Function
End
*1
XX000001
When reset
R W
O O
O O
O O
O O
O O
O X
_ _
16
CPU Rewrite Mode