XR16L788IQ-F Datasheet, PDF (49/54 Pages) Exar Corporation – HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART

REV. 1.2.3
XR16L788
HIGH PERFORMANCE 2.97V TO 5.5V OCTAL UART
FIGURE 20. MODEM INPUT/OUTPUT TIMING
IOW #
RTS#
DTR#
Active
Change of state
T _{W DO}
Change of state
CD#
CTS#
DSR#
INT
IOR#
RI#
T_MOD
Change of state
Change of state
Active
Active
T_MOD
T_RSI
Active
Active
Active
Active
T_MOD
Change of state
FIGURE 21. RECEIVE INTERRUPT TIMING [NON-FIFO MODE]
RX
Start
Bit
D0:D7
Stop
Bit
D0:D7
INT#
IOR#
(Reading data
out of RHR)
1 Byte
in RHR
T_RR
1 Byte
in RHR
T_RR
D0:D7
1 Byte
in RHR
T_RR
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