Genesys GL640USB
The GL640USB is a low-cost, single-chip embedded controller designed for connecting an IEEE 1284 parallel port peripheral to USB. It is suitable for applications where the IC is mounted on a PCB inside a product or stand-alone applications where the chip resides in a cable connecting a standard parallel port device to an USB-capable computer. The GL640USB firmware/driver will allow peripheral vendors to easily migrate parallel port device to USB.FEATURES
.................................................................................................................. 2DESCRIPTION
.............................................................................................................. 3 IEEE 1284 Interface................................................................................................ 3 Pin Configuration .................................................................................................... 4 Pin Descriptions ...................................................................................................... 5 Block Diagram......................................................................................................... 7 8-BIT RISC MCU INSTRUCTION ........................................................................... 9 7.1 MEMORY ORGANIZATION .............................................................................. 9 7.2 MCU FUNCTION REGISTERS .......................................................................