NUTINY-SDK-M0516 Nuvoton Technology Corporation of America, NUTINY-SDK-M0516 Datasheet - Page 279

• Manufacturer Part Number: NUTINY-SDK-M0516
• Description: BOARD EVAL NUMICRO M051 SERIES
• Manufacturer: Nuvoton Technology Corporation of America
• Series: NuMicro M051™r
• Type: MCUr

Specifications of NUTINY-SDK-M0516

• Contents: Board, Cable
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: M051™ Series, M052/M054/M058/M0516

6.10.4 IrDA Mode
6.10.4.1 IrDA SIR Transmit Encoder
6.10.4.2 IrDA SIR Receive Decoder
NuMicro M051
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 Figure 6.10-4 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
UART
IRCR
RX
TX
BAUDOUT
IrDA_enable
SOUT
TX_select
INV_RX
INT_TX
™
SIN
Figure 6.10-4 IrDA Block Diagram
Series Technical Reference Manual
IrDA
SIR
IR_SOUT
- 279 -
IR_SIN
Publication Release Date: Sept 14, 2010
RX pin
TX pin
Transceiver
IR
Detect Infra red ray
Emit Infra red ray
Revision V1.2