M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 202

• 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 1.152. Page program flowchart
Rev.2.00
REJ03B0005-0200
1. Read Array Command (FF
The read array mode is entered by writing the command code "FF
address that is to be read is input in one of the bus cycles that follow, the content of the specified address is
read out at the data bus (D
The read array mode is retained until another command is written.
2. Read Status Register Command (70
When the command code "70
the data bus (D
3. Clear Status Register Command (50
This command clears the bits SR3 to SR5 of the status register after being set. These bits indicate that opera-
tion has ended in an error. To use this command, write the command code "50
4. Page Program Command (41
Page program allows for high-speed programming in units of 256 bytes. Page program operation starts when
the command code "41
the write data is sequentially written 16 bits at a time. At this time, the addresses A
by 2 from “00
program and verify operation). Figure 1.152 shows an example of a page program flowchart.
The completed auto write operation can be confirmed by reading the status register or the flash memory
control register 0. At the same time the auto write operation starts, the read status register mode is automati-
cally entered, so the content of the status register can be read out. The status register bit 7 (SR7) is set to 0 at
the same time the auto write operation starts and is returned to 1 when the auto write operation has been
completed. In this case, the read status register mode remains active until the Read Array command (FF
Read Lock Bit Status command (71
The RY/BY status flag of the flash memory control register 0 is "0" during auto write operation and "1" when the
auto write operation and status register bit 7 have been completed.
After the auto write operation is completed, the status register can read out the results of the auto write opera-
tion. Refer to the status register section for more details.
Each block of the flash memory can be write protected by using a lock bit. Refer to the data protect function
section for more details. Additional writes to the pages previously programmed are prohibited.
Oct 16, 2006
16
” to "FE
0
-D
7
) by a read in the second bus cycle.
page 200 of 264
16
16
" is written in the first bus cycle. In the second bus cycle through the 129th bus cycle,
." When the system finishes loading the data, it starts an auto write operation (data
0
-D
16
16
15
)
" is written in the first bus cycle, the content of the status register is read out at
), 16 bits at a time.
16
)
16
) is written or the flash memory is reset using its reset bit.
16
16
)
)
Write address n and
RY/BY status flag
Check full status
Page program
Write 41
completed
n = FE
data n
Start
n = 0
= 1?
YES
YES
16
16
NO
NO
n = n + 2
16
" in the first bus cycle. When an even
16
" in the first bus cycle.
0
-A
7
need to be incremented
CPU Rewrite Mode
16
) or