M0516ZAN Datasheet, PDF (48/71 Pages) List of Unclassifed Manufacturers – ARM Cortex™-M0 32-BIT MICROCONTROLLER

NuMicro^™ M058/M0516 Data Sheet
Baud rate
921600
460800
230400
115200
57600
38400
19200
9600
4800
System clock = internal 22.1184 MHz high speed oscillator
Mode0
x
Mode1
A=0,B=11
A=1
A=1,B=15
A=2,B=11
A=4
A=4,B=15
A=6,B=11
A=10
A=10,B=15
A=14,B=11
A=22
A=22,B=15
A=30,B=11
A=34
A=62,B=8
A=46,B=11
A=34,B=15
A=70
A=126,B=8
A=94,B=11
A=70,B=15
A=142
A=254,B=8
A=190,B=11
A=142,B=15
A=286
A=510,B=8
A=382,B=11
A=286,B=15
Table 6-4 UART Baud Rate Setting Table
Mode2
A=22
A=46
A=94
A=190
A=382
A=574
A=1150
A=2302
A=4606
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
delay between transmission and reception. This delay feature must be implemented by software.
Another alternate function of UART controllers is RS-485 9 bit mode function, and direction
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Publication Release Date: May 30, 2011
Revision V2.00