NUTINY-SDK-M0516 Nuvoton Technology Corporation of America, NUTINY-SDK-M0516 Datasheet - Page 272

• 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

The UART0 and UART1 controllers support auto-flow control function that uses two low-level
signals, /CTS (clear-to-send) and /RTS (request-to-send), to control the flow of data transfer
between the UART and external devices (ex: Modem). When auto-flow is enabled, the UART is
not allowed to receive data until the UART asserts /RTS to external device. When the number of
bytes in the RX FIFO equals the value of RTS_TRI_LEV (UA_FCR [19:16]), the /RTS is de-
asserted. The UART sends data out when UART controller detects /CTS is asserted from external
device. If a valid asserted /CTS is not detected the UART controller will not send data out.
The UART controllers also provides Serial IrDA (SIR, Serial Infrared) function (User must set
IrDA_EN (UA_FUN_SEL[1:0]) to enable IrDA function). The SIR specification defines a short-
range infrared asynchronous serial transmission mode with one start bit, 8 data bits, and 1 stop
bit. The maximum data rate is 115.2 Kbps (half duplex). The IrDA SIR block contains an IrDA SIR
Protocol encoder/decoder. The IrDA SIR protocol is half-duplex only. So it cannot transmit and
receive data at the same time. The IrDA SIR physical layer specifies a minimum 10ms transfer
Baud rate
921600
460800
230400
115200
57600
38400
19200
9600
4800
NuMicro M051
Table 6.10-2 UART Baud Rate Setting Table
Mode0
A=142
A=286
A=10
A=22
A=34
A=70
A=1
A=4
x
™
System clock = 22.1184 MHz
Series Technical Reference Manual
- 272 -
A=190,B=11
A=142,B=15
A=382,B=11
A=286,B=15
A=10,B=15
A=14,B=11
A=22,B=15
A=30,B=11
A=46,B=11
A=34,B=15
A=126,B=8
A=94,B=11
A=70,B=15
A=254,B=8
A=510,B=8
A=0,B=11
A=1,B=15
A=2,B=11
A=4,B=15
A=6,B=11
A=62,B=8
Mode1
Publication Release Date: Sep 14, 2010
A=1150
A=2302
A=4606
Revision V1.2
Mode2
A=190
A=382
A=574
A=22
A=46
A=94