M30620FCAFP#U5 Renesas Electronics America, M30620FCAFP#U5 Datasheet - Page 535

• Manufacturer Part Number: M30620FCAFP#U5
• Description: IC M16C MCU FLASH 100QFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M16C/60r

Specifications of M30620FCAFP#U5

• Core Processor: M16C/60
• Core Size: 16-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 85
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 10K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 100-QFP
• Package: 100PQFP
• Family Name: M16C
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 16|32 Bit
• Number Of Programmable I/os: 87
• Interface Type: SIM/UART
• On-chip Adc: 10-chx10-bit
• On-chip Dac: 2-chx8-bit
• Number Of Timers: 11
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

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Controlling Power Applications
3.8 Controlling Power Using Wait Mode
Overview
Specifications
Operation
Figure 3.8.1. Operation timing of controling power using wait mode
X
X
Timer B2 overflow
Timer B2
interrupt processing
INT
BCLK
CIN
OUT
0
The following are steps for controling power using wait mode. Figure 3.8.1 shows the operation
timing, and Figures 3.8.2 to 3.8.4 show the set-up procedure.
Use the following peripheral functions:
• Timer mode of timer B
• Wait mode
A flag named “F-WIT” is used in the set-up procedure. The purpose of this flag is to decide
whether or not to clear wait mode. If F_WIT = “1” in the main program, the wait mode is entered;
if F_WIT = “0”, the wait mode is cleared.
(1) Connect a 32.768-kHz oscillator to X
(2) Clear wait mode if a INT0 interrupt request occurs.
(1) Switch the system clock from X
(2) Stop X
(3) When a timer B2 interrupt request occurs (at 1-second intervals), start supplying the BCLK
At this time, count the clock within the routine that handles the timer B2 interrupts and enter wait
(4) If a INT0 interrupt occurs, start supplying the BCLK from X
occur every one second, which is a count the timer reaches, the controller returns from wait
mode and count the clock using a program.
from X
mode again.
the INT0 interrupt, and switch the system clock to X
_______
_______
IN
“H”
“L”
CIN.
High-speed
and enter wait mode. In this instance, enable the timer B2 interrupt and the INT0 interrupt.
(1) Shift to low-speed mode
Low-speed
(2) Stop X
________
(3) Timer B2 interrupt
IN
IN
Low-speed
to X
CIN
CIN
to get low-speed mode.
to serve as the timer count source. As interrupts
IN
Low-speed
.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
CIN
. Start the X
(4) INT
Low-speed
M16C / 62A Group
IN
0
Mitsubishi microcomputers
interrupt
oscillation within
High-speed
_______