The DEMSCC – Dual channel Multiprotocol Enhanced Serial Communication Controller, is designed for use with 8- and 16- bit microprocessors.
The DMESCC handles asynchronous formats, synchronous byte-oriented protocols such as IBM® Bisync, and synchronous bit-oriented protocols such as HDLC and SDLC. The device can generate and check CRC codes in any synchronous mode and can be programmed to check data integrity in various modes. The DEMSCC also has facilities for modem control in both channels.