M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 39

• 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
Rev.2.00
REJ03B0005-0200
Figure 1.17. Protect register
Protection
The protection function is provided so that the values in important registers cannot be changed in the event that
the program runs out of control. Figure 1.17 shows the protect register. The values in the processor mode
register 0 (address 0004
(address 0006
respective bit in the protect register is set to "1". Setting the respective bits in the protect register to "0" will write
protect these registers and not allow them to be changed.
Oct 16, 2006
Protect register
b7
b6
b5
16
page 37 of 264
) and system clock control register 1 (address 0007
b4
b3
0
b2
b1
16
b0
), processor mode register 1 (address 0005
Bit symbol
Nothing is assigned.
Write "0" when writing to these bits.
The values are indeterminate when read.
Reserved
PRC0
PRC1
Symbol
PRCR
Enables writing to system clock
control registers 0 and 1 (addresses
0006
synthesizer registers (addresses
03DB
Enables writing to processor mode
registers 0 and 1 (addresses 0004
and 0005
16
16
and 0007
to 03DF
16
)
Address
000A
Bit name
16
16
)
) and frequency
16
XXXXX000
When reset
16
0 : Write-inhibited
1 : Write-enabled
0 : Write-inhibited
1 : Write-enabled
Must always be set to "0"
2
Function
16
16
) can only be changed when the
), system clock control register 0
R
W
Processor Mode