XR19L400 Datasheet, PDF (17/45 Pages) Exar Corporation – SINGLE CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER

REV. P1.0.0
PRELIMINARY
XR19L400
SINGLE CHANNEL INTEGRATED UART AND RS-485 TRANSCEIVER
FIGURE 11. INTERNAL LOOP BACK
Transmit Shift Register
(THR/FIFO)
VCC
MCR bit-4=1
Receive Shift Register
(RHR/FIFO)
VCC
RTS
CTS
VCC
DTR
DSR
RI
OP1#
OP2#
CD
TX
RX
RTS#
CTS#
DTR#
DSR#
RI#
CD#
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