XR16M564 Datasheet, PDF (23/55 Pages) Exar Corporation – 1.62V TO 3.63V QUAD UART WITH 32-BYTE FIFO

REV. 1.0.0
XR16M564/564D
1.62V TO 3.63V QUAD UART WITH 32-BYTE FIFO
FIGURE 13. INTERNAL LOOP BACK IN CHANNELS A - D
Transmit Shift Register
(THR/FIFO)
VCC
MCR bit-4=1
Receive Shift Register
(RHR/FIFO)
VCC
RTS#
CTS#
VCC
DTR#
DSR#
RI#
CD#
OP1#
OP2#
TX A-D
RX A-D
RTS# A-D
CTS# A-D
DTR# A-D
DSR# A-D
RI# A-D
CD# A-D
23