8530 Multi-Protocol Controller

Overview

Key Features

• Hardware features
• Transmit buffer (2 Byte Depth)
• Receive buffer (4 Byte Depth)
• Interrupt control function
• DMA request: 2 for TX and 2 for Rx
• Overrun error detection
• Baud rate generator
• Self-loop back test function
• DPLL supported
• Communication protocol features
• Start-stop synchronization
• Character oriented protocol (COP) - Mono-sync, Bi-sync, External sync
• Bit oriented protocol (BOP) - HDLC, SDLC, SDLC Loop
• Processing data format
• Encode/decode of NRZ (Non-Return to Zero)
• Encode/decode of NRZI (Non-Return to Zero Inverted)
• Encode/decode of FM (Frequency Modulation)
• Decode in Manchester mode

Benefits

• Controller has facilities for modem controls in both channels
• Controller modem signals are not used then they can be used as general purpose I/O

Block Diagram

Applications

• Controller supports virtually any other serial protocol for application other than data communications
• SECS Protocol
• TTY Protocol
• X.25 Protocol
• HDLC ABM Protocol

Deliverables

• ...

Technical Specifications