UPD70F3738GF-GAS-AX Renesas Electronics America, UPD70F3738GF-GAS-AX Datasheet - Page 816

• Manufacturer Part Number: UPD70F3738GF-GAS-AX
• Description: MCU 32BIT V850ES/JX3-L 100-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Lr

Specifications of UPD70F3738GF-GAS-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 84
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 3.6 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

21.7 External Interrupt Request Input Pins (NMI, INTP0 to INTP7)
21.7.1 Noise elimination
21.7.2 Edge detection
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(1) Noise elimination for NMI pin
(2) Noise elimination for INTP0 to INTP7 pins
(3) Noise elimination for INTP3 pin
The valid edge of each of the NMI and INTP0 to INTP7 pins can be selected from the following four.
• Rising edge
• Falling edge
• Both rising and falling edges
• No edge detected
Caution The NMI pin alternately functions as the P02 pin, and functions as a normal port pin after being
The NMI pin has an internal noise eliminator that uses analog delay (several 10 ns). Therefore, a signal input
to the NMI pin is not detected as an edge unless it maintains its input level for a certain period. The edge is
detected only after a certain period has elapsed.
The NMI pin is used for releasing the STOP mode. In the STOP mode, noise elimination using the system
clock is not performed because the internal system clock is stopped.
The INTP0 to INTP7 pins have an internal noise eliminator that uses analog delay (several 10 ns). Therefore,
a signal input to each pin is not detected as an edge unless it maintains its input level for a certain period. The
edge is detected only after a certain period has elapsed.
The INTP3 pin has an internal digital/analog noise eliminator, and digital or analog noise elimination can be
selected by using the NFC.NFEN bit (analog delay: several 10 ns).
The sampling clock can be selected from f
NFC.NFC2 to NFC.NFC0 bits. If the sampling clock is set to f
sampling clock stops in the IDLE or STOP mode. It cannot therefore be used to release a standby mode. To
release a standby mode, select f
reset. To enable the NMI pin function, use the PMC0 register. The initial setting of the NMI pin is
“No edge detected”. Select the NMI pin valid edge by using the INTF0 and INTR0 registers.
CHAPTER 21 INTERRUPT SERVICING/EXCEPTION PROCESSING FUNCTION
XT
as the sampling clock or select the analog noise eliminator.
User’s Manual U18953EJ5V0UD
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/64, f
XX
/128, f
XX
XX
/256, f
/64, f
XX
XX
/128, f
/512, f
XX
XX
/256, f
/1,024, or f
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/512, or f
XT
by using the
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/1,024, the