SB16C1058_Data Sheet_EN

SB16C1058
OCTAL UART WITH 256-BYTE FIFO
JULY 2013 REV 1.04
16
Interface configuration and panels.
16-port serial card and expandable 32-port serial card can be made. 16-port serial card is
designed to expand 16 serial ports with two SB16C1058 Octal-UARTs connected to
SB4002A by MIO Bus as shown in below diagram. 32-port serial card is designed as
shown in below diagram. It is composed of one SB4002A and is capable of expanding by
8 ports using 8-port panels.
When serial communication port is expanded over 8 ports, there is higher chance of the
FIFO Buffer getting full in the UART as the result of PCI Bus’ performance problem and
as data is overwritten, overrun errors are more likely to occur. Since SB16C1058 uses
256-Byte FIFO, overrun errors and the loss of data can be prevented. Therefore,
SB16C1058 can be considered the optimum solution for serial cards with multiple ports.
<16-port Serial MultiPort PCI Card Application>
Figure 3: Expandable 32-port Serial MultiPort PCI Card Application
SB4002A
X16
Transceivers
PCI Bus
SB16C1058
Octal-UART
SB16C1058
Octal-UART
MIO Bus
16 Serial Ports
Serial Interface
SB4002A
PCI Bus
MIO Bus
Buffers
SB16C1058
Octal-UART
Transceiver Transceiver Transceiver Transceiver
Transceiver Transceiver Transceiver Transceiver
MIO Cable
8-Port Panel 8-Port Panel 8-Port Panel