USBN9604-28M
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 configuration 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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