FEATURES
Transfers files between two PCs with USB interface Full compliance with the Universal Serial Bus Specification Version 1.1 USB full-speed connection Double data buffer supporting two-way data transfer Low power consumption Supports suspend and resume power FIFO USB Interface Port A SIE Port A Logic Handshakes Port B Logic Port B SIE USB Interface FIFO Phase Lock Loop (PLL) Descriptor Table Oscillator management Supports remote wake-up PnP drivers running under WinNT, Win98 and Win95 OSR 2.1 Bus powered from either USB port Suitable for mobile PC environment On-chip USB transceiver On-chip oscillator using one 12 MHz crystal No glue logic needed and can be embedded in small space 28-Pin SSOP package As shown in the block diagram above, this ASIC contains two USB units working independently. Together with the two FIFOs and control logic in between, they exchange data without blocking. The entire clock oscillator, PLL, voltage regulators, USB transceivers, and power-on reset circuits are integrated on the chip.