Universal Serial Bus Full Speed Node Controller with Enhanced DMA Support

 

 

 

General Description

The USBN9603/4 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 device 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 device 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 allows device con?guration for different interrupt signaling requirements.

 

 

Outstanding Features

 

Low EMI, low standby current, 24 MHz oscillator

 

Advanced DMA mechanism

 

Fully static HALT mode with asynchronous wake-up

for bus powered operation

 

5V or 3.3V operation

 

Improved input range 3.3V signal voltage regulator

 

All unidirectional FIFOs are 64 bytes

 

Power-up reset and startup delay counter simplify system design

 

Simple programming model controlled by external controller

 

Available in two packages

USBN9603/4SLB: small footprint for new designs

and portable applications

USBN9603/4-28M: standard package, pin-to-pin

compatible with USBN9602-28M

 

 

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