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US 8,806,086 B2Granted
Serial port connection circuit and server
AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.
InventorsCheng-Fei Weng, Jie Li
Life of this patent
Estimating the term…
Abstract
A server includes a baseboard management controller (BMC), an input/output (I/O) chip, a serial port, and a serial port connection circuit. The serial port connection circuit is connected to the BMC, the I/O chip, and the serial port, and selectively connects either the BMC or the I/O chip to the serial port.
Claims14
A serial port connection circuit for selectively connecting either a baseboard management controller (BMC) or an input/output (I/O) chip to a serial port, the serial port connection circuit comprising:
- a first data transmission unit connected to the BMC;
- a second data transmission unit connected to the I/O chip;
- a third data transmission unit connected to the first data transmission unit, the second data transmission unit, and the serial port;
- and
- a fourth data transmission unit connected to the BMC, the I/O chip, and the serial port;
- wherein the first, second, third, and fourth data transmission units are all multiple selectors, and the serial port is selectively connected to either the BMC or the I/O chip by the first, second, third, and fourth data transmission units;
- and
- wherein the serial port is connected to the BMC via the first data transmission unit and the third data transmission unit connected in series and further via the fourth transmission unit, and is connected to the I/O chip via the second data transmission unit and the third data transmission unit connected in series and further via the fourth transmission unit.
5 more elements
A server, comprising:
- a baseboard management controller (BMC);
- an input/output (I/O) chip;
- a serial port;
- and
- a serial port connection circuit connected to the BMC, the I/O chip, and the serial port;
- wherein the serial port connection circuit selectively connects either the BMC or the I/O chip to the serial port;
- the serial port connection circuit includes a first data transmission unit connected to the BMC, a second data transmission unit connected to the I/O chip, a third data transmission unit connected to the first data transmission unit, the second data transmission unit, and the serial port;
- and a fourth data transmission unit connected to the BMC, the I/O chip, and the serial port;
- and the first, second, third, and fourth data transmission units are all multiple selectors, and connect the BMC to the serial port via the first data transmission unit and the third data transmission unit connected in series and further via the fourth transmission unit, or connect the I/O chip to the serial port via the second data transmission unit and the third data transmission unit connected in series and further via the fourth transmission unit.
6 more elements
Dependencies are inferred from the claim text.