Supermicro X12SCA-F - Serial Header; Super I;O

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Chapter 1: Introduction
1.7 Serial Header
The X12SAE/X12SCA-F motherboard supports one serial communication connection. The
COM header can be used for input/output. The UART provides legacy speeds with a baud
rate of up to 115.2 Kbps as well as an advanced speed with baud rates of 250 K, 500 K, or
1 Mb/s, which support high-speed serial communication devices.
1.8 Super I/O
The Super I/O supports one high-speed, 16550 compatible serial communication port (UART).
Each UART includes a 16-byte send/receive FIFO, a programmable baud rate generator,
complete modem control capability and a processor interrupt system. The UART provides
legacy speed with a baud rate of up to 115.2 Kbps as well as an advanced speed with baud
rates of 250 K, 500 K, or 1 Mb/s, which support higher speed modems.
The Super I/O provides functions that comply with ACPI (Advanced Conguration and Power
Interface), which includes support of legacy and ACPI power management through an SMI
or SCI function pin. It also features auto power management to reduce power consumption.