USBN9604

The USBN9604 are integrated, USB Node controllers. Other than the reset mechanism for the clock generation circuit, these two devices are identical. All references to "the device" in this document refer to both devices, unless otherwise noted.

The USBN9604 provides enhanced DMA support with many automatic data handling features. It is compatible with USB specification versions 1.0 and 1.1, and is an advanced version of the USBN9602.

The USBN9604 integrates the required USB transceiver with a 3.3V regulator, a Serial Interface Engine (SIE), USB endpoint (EP) FIFOs, a versatile 8-bit parallel interface, a clock generator and a MICROWIRE/PLUS™ interface. Seven endpoint pipes are supported: one for the mandatory control endpoint and six to support interrupt, bulk and isochronous endpoints. Each endpoint pipe has a dedicated FIFO, 8 bytes for the control endpoint and 64 bytes for the other endpoints. The 8-bit parallel interface supports multiplexed and non-multiplexed style CPU address/data buses. A programmable interrupt output scheme of the USBN9604 allows device configuration for different interrupt signaling requirements.