NUC140RE3CN Nuvoton Technology Corporation of America, NUC140RE3CN Datasheet - Page 337
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NUC140RE3CN
Manufacturer Part Number
NUC140RE3CN
Description
IC MCU 32BIT 128KB FLASH 64LQFP
Manufacturer
Nuvoton Technology Corporation of America
Series
NuMicro™ NUC100r
Specifications of NUC140RE3CN
Core Processor
ARM Cortex-M0
Core Size
32-Bit
Speed
50MHz
Connectivity
CAN, EBI/EMI, I²C, IrDA, LIN, SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
45
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
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NUC140RE3CN
Manufacturer:
PANASONIC
Quantity:
40 000
Company:
Part Number:
NUC140RE3CN
Manufacturer:
Nuvoton Technology Corporation of America
Quantity:
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Part Number:
NUC140RE3CN
Manufacturer:
NUVOTON
Quantity:
20 000
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5.12.4 IrDA Mode
5.12.4.1 IrDA SIR Transmit Encoder
5.12.4.2 IrDA SIR Receive Decoder
5.12.4.3 IrDA SIR Operation
The UART supports IrDA SIR (Serial Infrared) Transmit Encoder and Receive Decoder, and IrDA
mode is selected by setting the IrDA_EN bit in UA_FUN_SEL register.
When in IrDA mode, the UA_BAUD [DIV_X_EN] register must disable.
Baud Rate = Clock / (16 * BRD) , where BRD is Baud Rate Divider in UA_BAUD register.
The following diagram demonstrates the IrDA control block diagram.
The IrDA SIR Transmit Encoder modulate Non-Return-to Zero (NRZ) transmit bit stream output
from UART. The IrDA SIR physical layer specifies use of Return-to-Zero, Inverted (RZI)
modulation scheme which represent logic 0 as an infra light pulse. The modulated output pulse
stream is transmitted to an external output driver and infrared Light Emitting Diode.
In normal mode, the transmitted pulse width is specified as 3/16 period of baud rate.
The IrDA SIR Receive Decoder demodulates the return-to-zero bit stream from the input detector
and outputs the NRZ serial bits stream to the UART received data input. The decoder input is
normally high in the idle state. (Because of this, IRCR bit 6 should be set as 1 by default)
A start bit is detected when the decoder input is LOW
The IrDA SIR Encoder/decoder provides functionality which converts between UART data stream
and half duplex serial SIR interface. The following diagram is IrDA encoder/decoder waveform:
NuMicro™ NUC130/NUC140 Technical Reference Manual
UART
IRCR
RX
TX
BAUDOUT
IrDA_enable
SOUT
TX_select
INV_RX
INT_TX
SIN
Figure 5-73 IrDA Block Diagram
IrDA
SIR
IR_SOUT
- 337 -
IR_SIN
Publication Release Date: June 14, 2011
RX pin
TX pin
Transceiver
IR
Detect Infra red ray
Emit Infra red ray
Revision V2.01
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