MTerm

Overview

This is a design document for a Model 100 terminal program.

Features

• 38400bps support
• Hardware flow control
• The core should be open, educational, and reusable in other applications
• Permit queueing of multiple receive or transmit operations
• "Zero copy" - receive and transmit directly to/from the clients memory.
• Configurable RX level high/low watermarks for disable/re-enable of RTS
• Adjustable number of RX buffers and buffer size
• Interleaved transmit and receive
• Priority of operations are:
  • The current RX or TX operation as an atomic unit
  • Keyboard polling
  • Bottom line display
  • No-scroll display updates
  • Scrolling updates