XR16L2751_05 Datasheet, PDF (43/52 Pages) Exar Corporation – 2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE

xr
REV. 1.2.2
XR16L2751
2.25V TO 5.5V DUART WITH 64-BYTE FIFO AND POWERSAVE
FIGURE 15. MODEM INPUT/OUTPUT TIMING FOR CHANNELS A & B
IOW #
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 16. 16 MODE (INTEL) DATA BUS READ TIMING
A0-A2
T_AS
CSA#/
CSB#
IOR#
Valid Address
T_CS
T_RD
D0-D7
T_RDV
Valid Data
T_AH
T_DY
T_DD
Valid Address
T_AS
T_CS
T_AH
T_RD
T_RDV
T_DD
Valid Data
RDTm
43