XR16L784CV-F Datasheet, PDF (46/51 Pages) Exar Corporation – HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART

XR16L784
HIGH PERFORMANCE 2.97V TO 5.5V QUAD UART
FIGURE 20. MODEM INPUT/OUTPUT PORT DELAY
IOW#
RTS#
DTR#
Active
Change of
State
T17D
Change of
State
CD#
CTS#
DSR#
INT
T18D
Change of
State
Active
IOR#
Active
RI#
REV. 1.2.3
Change of
State
T18D
T19D
Active
Active
Active
Active
T18D
Change of
State
Modem-1
FIGURE 21. RECEIVE INTERRUPT TIMING [NON-FIFO MODE]
RX
Start
Bit
D0:D7
Stop
Bit
D0:D7
D0:D7
INT#
IOR#
(Reading data
out of RHR)
1 Byte
in RHR
T_RR
1 Byte
in RHR
T_RR
1 Byte
in RHR
T_RR
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