M30855FJGP#D3 Renesas Electronics America, M30855FJGP#D3 Datasheet - Page 80

• Manufacturer Part Number: M30855FJGP#D3
• Description: MCU 3/5V 512K I-TEMP 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: M16C™ M32C/80r

Specifications of M30855FJGP#D3

• Core Processor: M32C/80
• Core Size: 16/32-Bit
• Speed: 32MHz
• Connectivity: CAN, I²C, IEBus, SIO, UART/USART
• Peripherals: DMA, WDT
• Number Of I /o: 121
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 24K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 34x10b, D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

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R
R
e
E
3
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2
Figure 6.5 Low Voltage Detection Interrupt Generation Circuit
Figure 6.6 Low Voltage Detection Interrupt Generation Circuit Operation Example
0
C
1
9
8 /
0 .
B
Watchdog Timer
V
V
0
5
(Rejection Range:200 ns)
3
CC1
REF
0
G
Low Voltage
Detection
Interrupt Signal
3
VC27 bit
V
VC13 Bit
Digital Filter
D42 Bit
J
Low Voltage
Detection Circuit
7
u
NOTES:
CC1
o r
+
-
0 -
. l
u
0
1
NOTES:
p
, 1
0
1. Low voltage detection signal becomes "H" when the VC27 bit in the VCR2 register is set to "0" (disabled).
2. The D42 bit in the D4INT register is set to "0" (not detected) by program. The D42 bit is set to "0" when the VC27 bit is
3. The D43 bit is set to “0”(not detected) by program.
set to "0" (low voltage detection circuit disabled).
3
Rejection
(
1. This example applies to an operation of the low voltage detection interrupt generation circuit
2. Output from the digital filter shown in Figure 6.5.
2
M
Noise
0
3
0
when the D40 bit in the D4INT register is set to "1" (low voltage detection interrupt enabled).
(2)
2
5
C
Underflow Signal
from the
Watchdog Timer
8 /
Page 55
, 5
M
Low
Voltage
Detection
Signal
3
VC13
CPU
Clock
2
C
Sampling
(1)
f o
8 /
4
5
Low Voltage Detection Interrupt Generation Circuit
1/8
9
) T
4
D43
WAIT Instruction
(Wait Mode)
(3)
1/2
Noise Rejection
Circuit
1/2
CM10
D41
Sampling
1/2
00
01
10
11
2
2
2
2
Digital
Filter
DF1, DF0
No low voltage detection
interrupt signal is output
when the D42 bit is set
to "1".
D42
Set to "0" (not detected) by program
(2)
D40
Sampling
Oscillation Stop
Detection
Interrupt Signal
Low Voltage
Detection
Interrupt Signal
Watchdog
Timer Interrupt
Signal
6. Voltage Detection Circuit
Sampling
Non-
Maskable
Interrupt
Signal