Description
The UM6551 is an Asynchronous Communication Adapter (
Features
- On-chip baud rate generator: 15 programmable baud rates derived from a standard 1.8432 MHz external crystal (50 to 19,200 baud).
- 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 communica-
tion with the microprocessor.
- External 16x clock input for non-standard baud rates
(up to 125k baud).
UM6551 Datasheet
