XR17D158 Datasheet, PDF (72/72 Pages) Exar Corporation – UNIVERSAL (3.3V AND 5V) PCI BUS OCTAL UART

XR17D158
REV. 1.2.1
xr
5V PCI BUS OCTAL UART
FIGURE 21. DEVICE CONFIGURATION AND UART REGISTERS READ OPERATION FOR A BYTE OR DWORD ...................................... 62
FIGURE 22. DEVICE CONFIGURATION REGISTERS, UART REGISTERS AND TRANSMIT DATA BURST WRITE OPERATION ..................... 63
FIGURE 23. DEVICE CONFIGURATION REGISTERS, UART REGISTERS AND RECEIVE DATA BURST READ OPERATION ........................ 64
FIGURE 24. 5V PCI BUS CLOCK (DC TO 33MHZ) .......................................................................................................................... 65
FIGURE 25. 3.3V PCI BUS CLOCK (DC TO 33MHZ) ....................................................................................................................... 66
FIGURE 26. TRANSMIT DATA INTERRUPT AT TRIGGER LEVEL ........................................................................................................... 67
FIGURE 27. RECEIVE DATA READY INTERRUPT AT TRIGGER LEVEL.................................................................................................. 67
PACKAGE DIMENSIONS.................................................................................................68
REVISION HISTORY.......................................................................................................................................69
TABLE OF CONTENTS ............................................................................................................I
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