USB Combo - Serial & Parallel
Description
The Kawasaki USB to Parallel / 2Serial enables your system to have the capability to communicate
between the USB (Universal Serial Bus) port and parallel port and 2 serial ports. This device meets the
USB 1.0/1.1 and IEEE1284 enhanced parallel port and standard serial port specifications. All the
advantages of USB are available to peripherals with parallel and serial port interface. With Kawasaki’s
USB to Serial/Parallel device and software, it is transparent to the peripheral and no firmware changes
are required which makes it possible to convert peripherals with serial and parallel interfaces to USB
interface with minimum modifications. This device is ideal for Legacy solutions.
Features
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Advanced 16 Bit processor for USB transaction
processing and control data processing
Compliant with the USB 1.0/1.1 (Universal
Serial Bus)
Plug and Play compatible
Compliant with USB printer device class
specification
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2 serial ports
230Kbps serial baud rate
128 byte FIFO
Serial EEPROM interface
Utilizes low cost external crystal circuitry
1.5K x 16 internal RAM buffer for fast
communications
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Utilizes low cost external crystal circuitry
IEEE1284 compliant including EPP and ECP
PC parallel port register-based standard
operation
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Debug UART for debug and code development
USB host device drivers available
Multiple logical channels support
Single-chip solution in a 100 pin LQFP
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5V tolerate Centronics inputs pins.
Block Diagram
Channel 2
Watchdog
Timer
VP
Channel 1
USB
DTR
RTS
Interface
Serial
VM
Interface
Timer 1
Timer 0
DCD
DSR
Serial
16 Bit
Processor
Interface
CTS
RI
Serial
Interface
Engine
Txd
Rxd
16 Bit Address / Data Bus
RAM
(3KB)
IEEE1284
host
CLK
PLL & Clock
Generator
X2
EEPROM
Serial
Interface
Mask
ROM
IEEE1284
parallel port
peripheral
Txd
Rxd
IEEE1284
buffers
Debug
UART
SDA
SCL
Ver. 1.8
Kawasaki LSI · 2570 North First Street · Suite 301 · San Jose, CA 95131 · Tel: (408) 570-0555 · Fax: (408) 570-0567 · www.klsi.com
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