M30245FCGP#U1 Renesas Electronics America, M30245FCGP#U1 Datasheet - Page 256

• 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
Stop Mode and Wait Mode
Interrupts
Reading address 00000
Setting the stack pointer
The NMI interrupt
External interrupt
(1) When returning from stop mode by hardware reset, RESET pin must be set to “L” level until main clock oscillation is
(2) When switching to either wait mode or stop mode, instructions occupying four bytes either from the WAIT instruction
(3) When using low-speed mode and low power dissipation mode, set the WAIT peripheral function clock stop bit
(4) When using f
When maskable interrupt occurs, the CPU reads the interrupt information (the interrupt number and interrupt request
evel) in the interrupt sequence. The interrupt request bit of the interrupt written in address 00000
“0”.
Do not read address 00000
interrupt source request bit to “0”. Though the interrupt is generated, the interrupt routine may not be executed.
The value of the stack pointer immediately after reset is initialized to 0000
value in the stack pointer may cause program runaway. Be sure to set a value in the stack pointer before accepting
an interrupt.
When using the NMI interrupt, initialize the stack pointer at the beginning of a program. Generating any interrupts
including the NMI interrupt is prohibited for the first instruction immediately after reset.
The NMI interrupt can not be disabled. Be sure to connect NMI pin to Vcc with a pull-up resistor if unused. Do not go
into stop mode when the NMI pin set to “L”.
The NMI pin also serves as P8
value to be read. Reading this pin is only to be used for establishing the pin level when the NMI interrupt is input.
Do not reset the CPU with the input to the NMI pin in the “L” state.
Do not attempt to go into stop mode when the input to the NMI pin is in “L” state. When the input to the NMI is in “L”
state, CM10 is fixed to “0” thereby refusing to go into stop mode.
Do not attempt to go into wait mode when the input to the NMI pin is in “L” state. When the input to the NMI pin is in
“L” state, the CPU stops but the oscillation does not. This action does not save power. When this occurs, the CPU is
returned to the normal state by a later interrupt.
Signals input to the NMI pin require an “L” level of (2 clocks + 300nS) or more from the operation clock of the CPU.
Either an “H” or “L” level of at least 250 ns width is necessary for the signal input to pins INT0 to INT2 regardless of
the CPU operation clock.
When the polarity of the INT0 to INT2 pins is changed, the interrupt request bit is sometimes set to “1”. After chang-
ing the polarity, reset the interrupt request bit to “0”. Figure 1.208 shows the procedure for changing the INT interrupt
generate factor.
stabilized.
or from the instruction that sets the all clock stop control bit to “1” within the instruction queue are prefetched and then
the program stops. So put at least four NOPs in succession either to the WAIT instruction or to the instruction that
sets the all clock stop control bit to “1”.
(CM02) to “1” and do not shift to wait mode.
frequency synthesizer control register to “0”).
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as the internal system clock, change to f(X
16
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16
by software. Reading address 00000
5
, which is exclusively an input. Reading the contents of the P8 register allows the pin
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IN
16
) before entering to stop mode (set bit 0 of the
by software sets enabled highest priority
16
. Accepting an interrupt before setting a
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16
will then be set to
Usage Notes
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