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PDF NCT5104D Data sheet ( Hoja de datos )
| Número de pieza | NCT5104D | |
| Descripción | 4 COM IC | |
| Fabricantes | novoTon | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de NCT5104D (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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NCT5104D
Nuvoton 4 COM IC
Date: February 3rd, 2012 Revision 1.0
1 page  
NCT5104D
1. GENERAL DESCRIPTION
The NCT5104D is a LPC to UART IC, which supports 4 high-speed serial communication port (UART). Each UART
includes a 128-byte send/receive FIFO, a programmable baud rate generator, complete modem-control capability,
and a processor interrupt system. The UART supports legacy speeds up to 115.2K bps as well as even higher baud
rates of 230K, 460K, or 921K bps to support higher speed modems.
In addition to UART, the NCT5104D provides flexible I/O control functions through a set of general purpose I/O
(GPIO) ports. These GPIO ports may serve as simple I/O ports or may be individually configured to provide
alternative functions. The NCT5104D supports port 80 decode on the LPC bus and could output the signal via
SOUTC. It also supports LED control.
The configuration registers inside the NCT5104D support mode selection, function enable and disable, and power-
down selection. Furthermore, the configurable PnP features are compatible with the plug-and-play feature in
Windows, making the allocation of the system resources more efficient than ever.
Publication Release Date: February, 3, 2012
-1- Version: 1.0
5 Page 
NCT5104D
PIN
SYMBOL
I/O BUFFER POWER
TYPE WELL
DESCRIPTION
28
SOUTB O O12
VSB
UART B Serial Output. This pin is used to transmit serial
data out to the communication link.
27
SINB
I INtp5
VSB
Serial Input. This pin is used to receive serial data through
the communication link.
UART B Data Terminal Ready. An active-low signal
26
DTRB#
O O12
VSB informs the modem or data set that the controller is ready
to communicate.
UART B Request To Send. An active-low signal informs
25
RTSB#
O O12
VSB the modem or data set that the controller is ready to send
data.
Data Set Ready. An active-low signal indicates the
24 DSRB# I INtp5 VSB modem or data set is ready to establish a communication
link and transfer data to the UART.
Clear To Send. This is the modem-control input. The
23
CTSB#
I INtp5
VSB function of these pins can be tested by reading bit 4 of the
handshake status register.
40
RIC#
I INtp5
VSB
Ring Indicator. An active-low signal indicates that a ring
signal is being received from the modem or the data set.
39
DCDC#
I INtp5
VSB
Data Carrier Detection. An active-low signal indicates the
modem or data set has detected a data carrier.
38
SOUTC O O12
VSB
UART C Serial Output. This pin is used to transmit serial
data out to the communication link.
38 SOUTC_P80 O
O12
VSB
PORT80 to UART Serial Output. This pin is used to
transmit serial data out to the communication link.
37
SINC
I INtp5
VSB
Serial Input. This pin is used to receive serial data through
the communication link.
UART C Data Terminal Ready. An active-low signal
36 DTRC# O O12 VSB informs the modem or data set that the controller is ready
to communicate.
UART C Request To Send. An active-low signal informs
35
RTSC#
O O12
VSB the modem or data set that the controller is ready to send
data.
Data Set Ready. An active-low signal indicates the
34 DSRC# I INtp5 VSB modem or data set is ready to establish a communication
link and transfer data to the UART.
Clear To Send. This is the modem-control input. The
33
CTSC#
I INtp5
VSB function of these pins can be tested by reading bit 4 of the
handshake status register.
48
RID#
I INtp5
VSB
Ring Indicator. An active-low signal indicates that a ring
signal is being received from the modem or the data set.
47
DCDD#
I INtp5
VSB
Data Carrier Detection. An active-low signal indicates the
modem or data set has detected a data carrier.
46
SOUTD O O12
VSB
UART D Serial Output. This pin is used to transmit serial
data out to the communication link.
Publication Release Date: February, 3, 2012
-7- Version: 1.0
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet NCT5104D.PDF ] | |
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