XR16M752 Datasheet, PDF (21/51 Pages) Exar Corporation – HIGH PERFORMANCE DUART WITH 64-BYTE FIFO

REV. 1.0.2
XR16M752/XR68M752
HIGH PERFORMANCE DUART WITH 64-BYTE FIFO
FIGURE 12. INTERNAL LOOP BACK IN CHANNEL A AND B
Transmit Shift Register
(THR/FIFO)
VCC
MCR bit-4=1
Receive Shift Register
(RHR/FIFO)
VCC
RTS#
CTS#
VCC
DTR#
DSR#
RI#
OP1#
VCC
OP2#
CD#
TXA/TXB
RXA/RXB
RTSA#/RTSB#
CTSA#/CTSB#
DTRA#/DTRB#
DSRA#/DSRB#
RIA#/RIB#
OP2A#/OP2B#
CDA#/CDB#
21