XRT16C854 Datasheet, PDF (45/54 Pages) Exar Corporation – 2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO

xr
REV. 3.0.1
XR16C854/854D
2.97V TO 5.5V QUAD UART WITH 128-BYTE FIFO
FIGURE 18. 68 MODE (MOTOROLA) DATA BUS READ TIMING FOR CHANNELS A-D
A0-A7
CS#
R/W#
D0-D7
TADS
Valid Address
TCSL
TADH
TRWS
TRDA
TCSD
TRWH
Valid Data
TRDH
Valid Address
Valid Data
68Read
FIGURE 19. 68 MODE (MOTOROLA) DATA BUS WRITE TIMING FOR CHANNELS A-D
A0-A7
CS#
R/W#
D0-D7
TADS
Valid Address
TCSL
TADH
TRWS
TCSD
TRWH
TWDS
Valid Data
T WDH
Valid Address
Valid Data
68Write
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