ST16C2550 Datasheet, PDF (29/34 Pages) Exar Corporation – DUAL UART WITH 16-BYTE TRANSMIT AND RECEIVE FIFOS

ST16C2550
TX
-IOW
D0-D7
-TXRDY
START
BIT
DATA BITS (5-8)
STOP
BIT
D0 D1 D2 D3 D4 D5 D6 D7
PARITY
BIT
NEXT
DATA
START
BIT
Active
BYTE #1
T27d
Active
Transmitter ready
Transmit ready timing in none FIFO mode
T28d
Transmitter
not ready
X552-TX-2
Rev. 3.20
29