NUC130RE3CN Nuvoton Technology Corporation of America, NUC130RE3CN Datasheet - Page 153

• Manufacturer Part Number: NUC130RE3CN
• Description: IC MCU 32BIT 128KB FLASH 64LQFP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro™ NUC100r

Specifications of NUC130RE3CN

• Core Processor: ARM Cortex-M0
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
• Number Of I /o: 49
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-LQFP
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

5.4.4.5
5.4.4.6
This USB provides 1 interrupt vector with 4 interrupt events (WAKEUP, FLDET, USB and BUS).
The WAKEUP event is used to wake-up the system clock when the power down mode is enabled.
(The power mode function is defined in system power down control register, PWRCON). The
FLDET event is used for USB plug-in or unplug. The USB event notifies users of some USB
requests, like IN ACK, OUT ACK etc., and the BUS event notifies users of some bus events, like
suspend, resume, etc. User must set related bits in the interrupt enable register (USB_INTEN) of
USB Device Controller to enable USB interrupts.
Wake-up interrupt is only present when the chip entered power down mode and then wake-up
event had happened. After the chip enters power down mode, any change on USB_DP and
USB_DM can wake-up this chip (provided that USB wake-up function is enabled). If this change is
not intentionally, no interrupt but wake-up interrupt will occur. After USB wake-up, this interrupt
will occur when no other USB interrupt events are present for more than 20ms. The following
figure is the control flow of wake-up interrupt.
USB interrupt is used to notify users of any USB event on the bus, and a user can read EPSTS
(USB_EPSTS[25:8]) and EPEVT5~0 (USB_INTSTS[21:16]) to know what kind of request is to
which endpoint and take necessary responses.
Same as USB interrupt, BUS interrupt notifies users of some bus events, like USB reset,
suspend, time-out, and resume. A user can read USB_ATTR to acknowledge bus events.
USB turns off PHY transceiver automatically to save power while this chip enters power down
Interrupt
Power Saving
NuMicro™ NUC130/NUC140 Technical Reference Manual
Figure 5-11 Wake-up Interrupt Operation Flow
Wake-up Interrupt
Wake Up Enable
Power Down
Wait 20ms
Wake-up
System
System
Y
Y
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N
N
Publication Release Date: June 14, 2011
Revision V2.01