PL-2305

PL-2305 USB TO IEEE1284 BRIDGE CONTROLLER Bi-Direction Parallel Interface OVERVIEW The PL-2305 USB-to-IEEE-1284 Bridge Controller is a low-cost high-performance single chip solution that provides bi-directional connectivity between any standard IEEE-1284 compliant parallel port devices and the Universal Serial Bus (USB) interface. Software drivers for Microsoft Windows 98 and NT 5.0 are also provided to create a seamless migration path from traditional parallel port to the USB environment. The PL-2305 is based on Prolific Technology’s USB Universal Parallel Bridge Controller (U-PBC) Dual-Thread Micro-Controller. With 512 bytes of unified data buffer, it is capable of providing maximum throughput for both upstream and downstream data transfer for a wide variety of devices. The IEEE-1284 interface of PL-2305 is robust enough to handle various not-so-compliant parallel port implementations. FEATURE USB Interface Universal Serial Bus Specification Rev. 1.1 compliant USB full speed communication and bus powered USB Printer Class Specification 1.0 compliant 12 MHz Crystal 5V-3V Regulator USB Transceiver Phase Lock Loop USB Serial Interface Engine Logic Device Module EP0 Control EP1 Bulk Out EP2 Bulk In EP3 Interrupt EP4 Bulk Out EP5 Bulk In 512 Bytes Unified Buffer System Address/Data Bus I/O Data [7:0] Control In [7:0] Control Out [11:0] Dual-Thread Micro-Controller (6 MIPS per Thread) Timer/ Counter Phase Generator Interrupt Controller IEEE-1284 1994 (bi-directional...