KCUSB3 Просмотр технического описания (PDF) - Unspecified

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KCUSB3

USB Controller – Quick Interface

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K KAWASAKI

LSI

KCUSB3

USB Controller – Quick Interface

The Processor – Divide/Multiply function

The processor’s divide/multiply function contains all the instructions of the base processor that

additionally includes integer divide and multiply instructions. A signed multiply instructions takes

two 16-bit operands and returns a 32-bit result. A signed divide instruction divides a 32-bit

operand by a 16-bit operand.

RAM Buffer

The USB controller contains a 3K byte (1.5K X 16) internal buffer memory. The memory is used

to buffer data and USB packets and accessed by the 16 Bit processor and the SIE. USB

transactions are automatically routed to the memory buffer. The 16-bit processor has the ability

to set up pointers and block sizes in buffer memory for USB transactions. Data is read from the

interface and is processed and packetized by the 16-bit I/O processor.

PLL Clock Generator

The PLL circuitry is provided to generate the internal 48MHz clock requirements. This circuitry is

designed to allow use of a low cost 12 MHz external crystal which is connected to the KCUSB3

pins X1 and X2. If an external 12 MHz clock is available in the application, it may be used in lieu

of the crystal circuit and connected directly to the X1 input pin.

USB Interface

The USB controller meets the Universal Serial Bus (USB) specification ver 1.0. The transceiver

is capable of transmitting and receiving serial data at the USB’s full speed, 12 Mbits/sec data

rate. The driver portion of the transceiver is differential, while the receive section is comprised of

a differential receiver and two single ended receivers. Internally, the transceiver interfaces to the

SIE logic. Externally, the transceiver connects to the physical layer of the USB.

A/D interface

The integrated A/D interface is a ten bit A/D interface with eight Analog Inputs and converts data

at 100K samples per second.

PWM Interface

Four PWM output channels are available with each channel capable of converting 10 bits at a

rate up to 48 KHz.

UART Interface

Supports a transfer rate of 900 to 115.2K baud.

General Purpose I/O

Up to 25 general purpose I/O signals are available. Most of the GPIOs can be configured for

special purpose functions such as PWM, Serial EEPROM interface, Digital Input, etc.

Kawasaki LSI • 2570 North First Street • Suite 301 • San Jose, CA 95131 • Tel: (408) 570-0555 • Fax: (408) 570-0567 • www.klsi.com Ver. 1.3

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