UM6551 Overview
The UM6551 is an Asynchronous munication Adapter.
UM6551 Key Features
- On-chip baud rate generator: 15 programmable baud rates derived from a standard 1.8432 MHz external crystal (50 to 19,20
- Programmable interrupt and status register to simplify software design
- Single +5 volt power supply
- Serial echo mode
- False start b it detect io n
- 8-bit bi-directional data bus for direct munica
- External 16x clock input for non-standard baud rates
- Programmable: word lengths; number of stop bits
- Data set and modem control signals provided
- Parity: (odd, even, none, mark, space)
