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US 9,541,990 B2Granted
Asynchronous transceiver for on-vehicle electronic device
AssigneeCypress Semiconductor Corporation
InventorsAkihiro Suzuki, Masami Nakashima, Masuo Inui, Koji Okada, Takeo Zaitsu, Takashi Shimizu, Shinichi Yamamoto, Kazuhiro Tomita, Susumu Kuroda
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Abstract
An on-vehicle electronic device has a generating unit configured to generate a first clock for data communication with another on-vehicle electronic device through a CXPI communication network; and an adjusting unit configured to adjust a duty width of the first clock.
Claims20
A device comprising:
- a controller coupled to a transceiver to operate as a slave node over a communication bus, each of the controller and the transceiver configured to operate in at least a standby mode and a normal mode;
- wherein the transceiver is configured to:
- receive an encoded reference clock signal from a master node over the communication bus, while the transceiver operates in the standby mode;
- send the encoded reference clock signal to the controller;
- and
- wherein the controller is configured to detect the encoded reference clock signal sent by the transceiver, while the controller operates in the standby mode.
3 more elements
A method comprising:
- sending, by a controller in a slave node, a wake-up signal to a master node over a communication bus, while the controller is operating in a standby mode;
- receiving, by a transceiver in the slave node, an encoded reference clock signal from the master node in response to the wake-up signal, while the transceiver is operating in the standby mode;
- sending, by the transceiver, the encoded reference clock signal to the controller;
- and
- detecting, by the controller, the encoded reference clock signal sent by the transceiver.
2 more elements
A system disposed in a vehicle, the system comprising:
- a Clock Extension Peripheral Interface (CXPI) bus;
- a master node coupled to the CXPI bus and configured to operate in at least a standby mode and a normal mode;
- and
- a slave node coupled to the CXPI bus and configured to operate in at least the standby mode and the normal mode, the slave node comprising:
- a controller coupled to a transceiver;
- the transceiver configured to:
- receive an encoded reference clock signal from the master node over the CXPI bus, while the transceiver operates in the standby mode;
- send the encoded reference clock signal to the controller;
- and
- the controller configured to detect the encoded reference clock signal sent by the transceiver, while the controller operates in the standby mode.
7 more elements
Dependencies are inferred from the claim text.