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XR16L784
I
HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
REV. 1.2.3
TABLE OF CONTENTS
2.1 DEVICE RESET .................................................................................................................................................... 6
2.1.1 HARDWARE RESET ...................................................................................................................................................... 6
2.2 UART CHANNEL SELECTION ............................................................................................................................ 6
TABLE 1: UART CHANNEL SELECTION ................................................................................................................................................ 6
2.3 SIMULTANEOUS WRITE TO ALL CHANNELS .................................................................................................. 6
2.6 PROGRAMMABLE BAUD RATE GENERATOR ................................................................................................ 8
2.7 TRANSMITTER .................................................................................................................................................... 9
2.7.1 TRANSMIT HOLDING REGISTER (THR) - WRITE ONLY ............................................................................................ 9
2.8 RECEIVER ......................................................................................................................................................... 10
2.8.1 RECEIVE HOLDING REGISTER (RHR) - READ-ONLY ............................................................................................. 11
2.9 THR AND RHR REGISTER LOCATIONS ......................................................................................................... 12
2.10.1 AUTO CTS/DSR FLOW CONTROL ........................................................................................................................... 13
2.11 AUTO XON/XOFF (SOFTWARE) FLOW CONTROL ...................................................................................... 14
2.12 SPECIAL CHARACTER DETECT .................................................................................................................. 14
2.15 SLEEP MODE WITH WAKE-UP INDICATOR ................................................................................................ 17
3.1 DEVICE CONFIGURATION REGISTER SET ................................................................................................... 19
3.1.1 THE GLOBAL INTERRUPT SOURCE REGISTERS ................................................................................................... 21