Descriptions
The GM16C550 is an asynchronous communications element (ACE) that is functionally equivalent to the GM16C450, and addition-ally incorporates a 16byte FIFOs are available on both the transmitter and receiver, and can be activated by placing the device in the FIFO mode. After a reset, the registers of the GM16C550 are identical to those of the GM16C450.

FEATUREs
● Fully compatible with GM16C450.
● Modem controm signals include CTS , RTS , DSR , DTR , RI and -DCD .
● Programmable serial characteristics:
   —5-, 6-, 7- or 8-bit characters
   — Even-, odd-, or no-parity bit generation and detection
   —1-, 11/2- or 2-stop bit generation
   — Baud rate generation (DC to 256K baud)
● 16 byte FIFO reduces CPU interrupts.
● Independent control of transmit, receive, line status, data set interrupts, FIFOs.
● Full status reporting capabilities
● Three-state, TTL drive capabilities for biderectional data bus and control bus.
● 40DIP/44PLCC