The USBN9602 is an integrated USB Node controller compatible with the USB Specification Versions 1.0 and 1.1. Integrated onto a single IC are the required USB transceiver with a 3.3V Regulator, Media Access Controller, USB endpoint (EP) FIFOs, a versatile 8-bit parallel interface, MICROWIRE/PLUS™ Interface and a clock generator. A total of seven FIFO buffers support the different USB messages: one bidirectional FIFO for the mandatory con-trol endpoint EP0 and six FIFOs for an additional six unidirectional Endpoint Pipes to support USB interrupt, bulk and isochronous data transfers. The 8-bit parallel interface supports multiplexed and non-multiplexed style CPU address/data buses. A programmable interrupt output scheme allows device configuration for different interrupt signaling requirements.