M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 18

• 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 1.8. Reset circuit
Reset
There are two kinds of resets: software and hardware. In both cases, operation is the same after the reset.
Figure 1.8 shows an example reset circuit. Figure 1.9 shows the reset sequence.
Software Reset
Hardware reset
I/O Status during Reset
Writing a "1" to bit 3 of the processor mode register 0 (address 0004
microcomputer. A software reset has almost the same effect as a hardware reset with the following excep-
tions:
• The contents of internal RAM are preserved in a software reset.
• The contents of all USB and PLL SFR values are preserved in a software reset.
• For bit 0 and 1 of processor mode register 0 (address 0004
(address 03FD
When performing a software reset, select the main clock for the CPU clock source, and set the PM03 bit to
"1" only when the main clock is stabilized.
When the supply voltage is in the range where operation is guaranteed, a reset is executed by holding the
reset pin to "L" level (0.2VCC max.) for at least 20 cycles. When the reset pin level is then returned to the "H"
level while the main clock is stable, the device exits reset and the program execution resumes from the
address in the reset vector table.
When the RESET pin level is "L", all ports change to input mode (floating) Table 1.5 shows the status of the
other pins while the RESET pin level is "L".
Oct 16, 2006
The above applies to V
RESET
16
page 16 of 264
), the value after software reset will be different from the value after hardware reset.
V
CC
CC
= 3.3V
RESET
V
CC
3.3V
3.3V
0V
0V
Supply a clock with 20 or more cycles to
the X
0V
IN
pin
16
Recommended
Operation Voltage
), and bit 1 of pull-up control register 1
0.2V
16
CC
) applies a (software) reset to the
or below
Reset