发明名称 |
CHTUNG UND ALS SLAVE-GERÄT IN EINEM BUSSYSTEM |
摘要 |
A device is provided for use in a data bus system like a USB bus system. The device can be coupled to a host via a bus cable that comprises a data transfer conductor and power supply conductors. The device detects whether a power supply is connected to the power supply conductors. Dependent on whether or not connection of the power supply has been detected, the device starts operating in a slave mode or in a stand-alone mode respectively. In a slave mode the device waits for commands received via the data transfer conductor. In the stand-alone mode the device operates independently from communication via the cable. Preferably, the device signals back to the host whether it is in the slave mode by enabling pull-up of a potential of the data transfer conductor. In an embodiment, detection and signaling is controlled via single control node. |
申请公布号 |
DE60043805(D1) |
申请公布日期 |
2010.03.25 |
申请号 |
DE2000643805 |
申请日期 |
2000.04.25 |
申请人 |
NXP B.V. |
发明人 |
WAUTERS, PIET S.;LENAERTS, JEAN L. |
分类号 |
G06F13/38;G06F13/40;H04L29/00 |
主分类号 |
G06F13/38 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|