XR19L200_07 Datasheet, PDF (40/40 Pages) Exar Corporation – SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER

XR19L200
SINGLE CHANNEL INTEGRATED UART AND RS-232 TRANSCEIVER
REV. 1.0.1
4.7 LINE CONTROL REGISTER (LCR) - READ/WRITE......................................................................................... 21
TABLE 9: PARITY SELECTION .......................................................................................................................................................... 22
4.8 MODEM CONTROL REGISTER (MCR) OR GENERAL PURPOSE OUTPUTS CONTROL - READ/WRITE.. 22
4.9 LINE STATUS REGISTER (LSR) - READ ONLY.............................................................................................. 23
4.10 MODEM STATUS REGISTER (MSR) - READ ONLY ..................................................................................... 24
4.11 SCRATCHPAD REGISTER (SPR) - READ/WRITE ........................................................................................ 25
4.12 BAUD RATE GENERATOR REGISTERS (DLL AND DLM) - READ/WRITE................................................. 25
4.13 DEVICE IDENTIFICATION REGISTER (DVID) - READ ONLY....................................................................... 25
4.14 DEVICE REVISION REGISTER (DREV) - READ ONLY ................................................................................. 25
4.15 ENHANCED FEATURE REGISTER (EFR) .................................................................................................... 26
TABLE 10: SOFTWARE FLOW CONTROL FUNCTIONS ........................................................................................................................ 26
4.16 SOFTWARE FLOW CONTROL REGISTERS (XOFF1, XOFF2, XON1, XON2) - WRITE ONLY ................... 27
TABLE 11: UART RESET CONDITIONS FOR CHANNEL A AND B ............................................................................................ 28
ABSOLUTE MAXIMUM RATINGS.................................................................................. 28
TYPICAL PACKAGE THERMAL RESISTANCE DATA (MARGIN OF ERROR: ± 15%) 28
ELECTRICAL CHARACTERISTICS ................................................................................................................... 29
AC ELECTRICAL CHARACTERISTICS ............................................................................................................. 30
FIGURE 10. CLOCK TIMING............................................................................................................................................................. 31
FIGURE 11. MODEM INPUT/OUTPUT TIMING .................................................................................................................................... 32
FIGURE 12. 16 MODE (INTEL) DATA BUS READ TIMING ................................................................................................................... 33
FIGURE 13. 16 MODE (INTEL) DATA BUS WRITE TIMING.................................................................................................................. 33
FIGURE 14. 68 MODE (MOTOROLA) DATA BUS READ TIMING .......................................................................................................... 34
FIGURE 15. 68 MODE (MOTOROLA) DATA BUS WRITE TIMING......................................................................................................... 34
FIGURE 16. RECEIVE READY INTERRUPT TIMING [NON-FIFO MODE] ............................................................................................... 35
FIGURE 17. TRANSMIT READY INTERRUPT TIMING [NON-FIFO MODE] ............................................................................................. 35
FIGURE 18. RECEIVE READY INTERRUPT TIMING [FIFO MODE] ....................................................................................................... 36
FIGURE 19. TRANSMIT READY INTERRUPT TIMING [FIFO MODE] ..................................................................................................... 36
PACKAGE DIMENSIONS (32 PIN QFN - 5 X 5 X 0.9 mm) .............................................. 37
REVISION HISTORY...................................................................................................................................... 38
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