Z8000

Zilog Z8030 Z8000® Z-SCC Serial Communications Controller Product Specification Features General Description Two independent, 0 to 1.5M bit/second, fullduplex channels, each with a separate crystal OSCillator, baud rate generator, and Digital Phase-Locked Loop for clock recovery. Multi-protocol operation under program control; programmable for NRZ, NRZI, or FM data encoding. Asynchronous mode with five to eight bits and one, one and one-half, or two stop bits per character; programmable clock factor; break detection and generation; parity, overrun, and framing error detection. Synchronous mode with internal or external character synchronization on one or two The Z8030 Z-SCC Serial Communications Controller is a dual-channel, multi-protocol data communications peripheral designed for use with the Zilog Z-Bus. The Z-SCC functions as a serial-to-parallel, parallel-to-serial converter/controller. The Z-SCC can be softwareconfigured to satisfy a wide variety of serial April 1985 synchronous characters and CRC generation and checking with CRC-16 or CRC-CCITT preset to either Is or Os. SDLC/HDLC mode with comprehensive frame-level control, automatic zero insertion and deletion, I-field residue handling, abort generation and detection, CRC generation and checking, and SDLC Loop mode operation. Local Loopback and Auto Echo modes. 1.544M bit/second Tl digital trunk compatible version available. communications applications. The device contains a variety of new, sophist...