XR16L651 Datasheet, PDF (45/56 Pages) Exar Corporation – 2.25V TO 5.5V UART WITH 32-BYTE FIFO

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REV. 1.3.0
FIGURE 17. MODEM INPUT/OUTPUT TIMING
XR16L651
2.25V TO 5.5V UART WITH 32-BYTE FIFO
IOW#
RTS#
DTR#
Active
Change of state
T_WDO
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 18. 16 MODE (INTEL) DATA BUS READ TIMING WITH AS# TIED TO GND
A0-
A2
CS2#
CS0
CS1
IOR#
IOR
D0-D7
T_AS
T_RDV
Valid
Address
T_CS
T_RD
Valid
Data
T_AH
T_AS
T_DY
T_DD
T_RDV
Valid
Address
T_CS
T_RD
Valid
Data
T_AH
T_DD
Note: Only one chipselect and one read strobe should be used.
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