Application specific integrated circuit and transceiver with multi-mode connection

Abstract

The present invention relates to an application specific integrated circuit (ASIC) comprising an integrated central processor unit (CPU) (10), an integrated network interface control (NIC) (11) and at least one integrated input/output (I/O) device (13-16), and a transceiver circuit for buffering and amplifying SCSI signals from such an ASIC, whereby the outputs can be enabled to function as totem-pole or open-drain outputs, for active negation and wired-OR, respectively. According to the invention at least one I/O device is an ATA (16) or SCSI (15) device, with ports for connection to an external transceiver. The invention also relates to such a transceiver circuit for buffering and amplifying SCSI signals on single direction lines from an ASIC, whereby the outputs to the SCSI bus can be enabled to function as totem-pole or open-drain outputs, for active negation and wired-OR, respectively. In this circuit the same data transmission lines between the transceiver circuit and the ASIC is used for wired-OR and for active negation.

Dependencies are inferred from the claim text.