Slim-line connector for serial ATA interface that is mounted on expansion bay of computer includes detection signals which indicate connection status and type of device
An electronic device includes a function extension device that includes a first slim line connector based on SATA, and a terminal device connected to the function extension device. The terminal device includes a detection circuit for outputting a first and second detection signals which indicate whether connection to the function extension device is established and a type of the function extension device, respectively, a control circuit for detecting whether connection to the function extension device is established and for determination of the type of the function extension device by the first and second detection signals, and a second slim line connector based on SATA. The first and second detection signals are signals that passes through pins P1 and S4 of the second slim line connector, respectively, the function extension device connects a pin P1 with a pin S4 of the first slim line connector.
1. An electronic device comprising:
a function extension device that includes a first slim line connector based on Serial Advanced Technology Attachment; and
a terminal device configured to be connected to the function extension device, the terminal device including,
a detection circuit configured to output a first detection signal and a second detection signal, the first and second detection signals indicating whether connection to the function extension device is established and a type of the function extension device,
a control circuit configured to detect whether connection to the function extension device is established and to determine the type of the function extension device on the basis of the first detection signal and the second detection signal, and
a second slim line connector based on Serial Advanced Technology Attachment,
wherein
the first detection signal is a signal that passes through a pin P1 of the second slim line connector, the pin P1 being defined by Serial Advanced Technology Attachment,
the second detection signal is a signal that passes through a pin S4 of the second slim line connector, the pin S4 being defined by Serial Advanced Technology Attachment, and
the function extension device connects a pin P1 with a pin S4 of the first slim line connector, the pins P1 and S4 being defined by Serial Advanced Technology Attachment.
2. The electronic device according to claim 1 , wherein
the function extension device is a Universal Serial Bus device that performs communication through a USB interface and performs data communication with the terminal device using a pin S7 and a pin P4 of the first slim line connector, the pins S7 and P4 being defined by Serial Advanced Technology Attachment.
3. The electronic device according to claim 1 , wherein
the terminal device further includes a switch unit that is connected to a pin S7 and a pin P4 of the second slim line connector, the pins S7 and P4 being defined by Serial Advanced Technology Attachment, wherein
the control circuit outputs a switching signal to the switch unit on the basis of a determination result, the determination result being indicative of the type of the function extension device, and
the switch unit changes output destinations of signals from the pin S7 and the pin P4 of the second slim line connector in accordance with the switching signal.
4. A connection detection method for a terminal device that is connected to a function extension device and that includes a second slim line connector based on Serial Advanced Technology Attachment, the function extension device including a first slim line connector based on Serial Advanced Technology Attachment, the first slim line connector including a pin P1 and a pin S4 that are connected to each other, the pins P1 and S4 being defined by Serial Advanced Technology Attachment, the connection detection method comprising:
checking a first and s second detection signals, the first detection signal being a signal that passes through a pin P1 of the second slim line connector, the second detection signal being a signal that passes through a pin S4 of the second slim line connector, the pins P1 and S4 being defined by Serial Advanced Technology Attachment; and
detecting whether connection to the function extension device is established on the basis of the first detection signal and the second detection signal.
5. The connection detection method according to claim 4 , wherein
the function extension device is a Universal Serial Bus device that performs communication through a USB interface, and
the connection detection method further comprising;
performing data communication with the terminal device using pins S7 and P4 of the first slim line connector, the pins S7 and P4 being defined by Serial Advanced Technology Attachment.
6. The connection detection method according to claim 4 , wherein
the terminal device further includes a switch unit that is connected to a pin S7 and a pin P4 of the second slim line connector, the pins S7 and P4 being defined by Serial Advanced Technology Attachment, and
the connection detection method further comprising:
determining a type of the function extension device on the basis of the first detection signal and the second detection signal;
outputting a switching signal to the switch unit on the basis of the determined type; and
changing output destinations of signals from the pin S7 and the pin P4 of the second slim line connector in accordance with the switching signal.