DESCRIPTION
The Universal Serial Bus (USB) Device Controller Mega Macrofunction is a featured element in Oki’s 0.5µm Sea of Gates (SOG) and Customer Structured Array (CSA) families. Okis USB mega macrofunction provides a USB interface, control/status block, FIFO control, and application interface in two highly integrated submodules for system design interfaces based on the USB protocol. The submodule partitioning allows custom configurations to be easily developed. The USB mega macrofunction connects an industry standard USB interface with a microprocessor-style parallel application interface. This straightforward interface permits easy integration of the USB mega macrofunction to the target application.

FEATURES
• USB 1.0 compliant
• Full-speed (12 Mb/sec) and low-speed (1.5 Mb/sec) support
• Microprocessor-style parallel application interface
• Supports isochronous, control, interrupt and bulk transfers
• Supports four transmit FIFO’s
    - Three 64 byte
    - One 2 Kbyte (2-level)
• Supports four receive FIFO’s
    - Three 64 byte
    - One 2 Kbyte (2-level)
• Supports one control endpoint and six additional endpoint addresses
• Expandable up to 32 endpoint addresses
• Customizable to specific application requirements