M30879FLFP#U3 Renesas Electronics America, M30879FLFP#U3 Datasheet - Page 80
![IC M32C/87 MCU FLASH 100QFP](/photos/12/31/123127/m30879flfp_u3_sml.jpg)
M30879FLFP#U3
Manufacturer Part Number
M30879FLFP#U3
Description
IC M32C/87 MCU FLASH 100QFP
Manufacturer
Renesas Electronics America
Series
M16C™ M32C/80r
Datasheets
1.M3087BFLGPU3.pdf
(93 pages)
2.M3087BFLGPU3.pdf
(629 pages)
3.M3087BFLGPU3.pdf
(364 pages)
Specifications of M30879FLFP#U3
Core Processor
M32C/80
Core Size
16/32-Bit
Speed
32MHz
Connectivity
CAN, EBI/EMI, I²C, IEBus, IrDA, SIO, UART/USART
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
85
Program Memory Size
1MB (1M x 8)
Program Memory Type
FLASH
Ram Size
48K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 26x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-QFP
For Use With
R0K330879S001BE - KIT DEV RSK M32C/87R0K330879S000BE - KIT DEV RSK M32C/87
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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M32C/87 Group (M32C/87, M32C/87A, M32C/87B)
REJ09B0180-0151 Rev.1.51 Jul 31, 2008
Page 56 of 587
6.2
Table 6.1
NOTES:
Table 6.2
NOTE:
CPU operating mode
Wait mode, Stop mode
CPU Clock
Vdet4 detection interrupt is generated if the voltage applied to the VCC1 pin crosses the Vdet4 (V) level, either by
dropping below or by rising above Vdet4. Set the VC27 bit in the VCR2 register to 1 (Vdet4 detection function
used) and the D40 bit in the D4INT register to 1 (Vdet4 detection interrupt enabled) to use the Vdet4 detection
function.
The D42 bit becomes 1 (voltage has crossed Vdet4) as soon as the applied voltage crosses Vdet4. When the D42 bit
changes from 0 to 1, a Vdet4 detection interrupt request is generated. The D42 bit does not become 0 automatically
when the interrupt is acknowledged. Set it to 0 (not detected) by a program. Whether the voltage has dropped below
Vdet4 or risen above Vdet4 can be determined by reading the VC13 bit in the VCR1 register.
Set the D41 bit in the D4INT register to 1 to use the Vdet4 detection interrupt to exit wait mode or stop mode. The
MCU exits wait mode or stop mode if the Vdet4 detection signal is generated even if the D42 bit is 1.
The Vdet4 detection interrupt shares the same interrupt vector with watchdog timer interrupt and oscillation stop
detection interrupt. When using the Vdet4 detection interrupt simultaneously with these interrupts, determine
whether the Vdet4 detection interrupt is generated by reading the D42 bit in the interrupt routine.
Table 6.1 shows conditions to generate Vdet4 detection interrupt request. Figure 6.6 shows a Vdet4 detection
function operation example.
Bits DF1 and DF0 in the D4INT register determine the sampling clock which is used to detects if the voltage
applied to the VCC1 pin has crossed Vdet4. Table 6.2 shows the sampling periods.
1. Set to 0 by a program before generating an interrupt.
2. An interrupt request is generated when the sampling period elapses after the value of the VC13 bit is changed.
3. CPU operating mode includes main clock mode, main clock direct mode, PLL mode, low speed mode, low-
4. Refer to 6.2.1 Usage Notes on Vdet4 Detection Interrupt.
1. Set the CPU clock 24 MHz or lower to use the voltage detection function.
(MHz)
16
24
Operating Mode
See Figure 6.6 Vdet4 Detection Function Operation Example for details.
power consumption mode, on-chip oscillator mode, on-chip oscillator low-power consumption mode. (Refer to
9. Clock Generation Circuits.)
Vdet4 Detection Function
Conditions to Generate Vdet4 Detection Interrupt Request
Sampling Periods
Divided-by-8
3.0
2.0
(3)
(4)
Divided-by-16
VC27 Bit
1
Sampling Clock (μs)
6.0
4.0
Divided-by-32
D40 Bit
1
12.0
8.0
Divided-by-64
D41 Bit
0 or 1
24.0
16.0
6. Power Supply Voltage Detection Function
1
D42 Bit
0 to 1
0 or 1
(1)
VC13 Bit
0 to 1
1 to 0
0 to 1
(2)
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