XR16L580 Datasheet, PDF (40/47 Pages) Exar Corporation – SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE

XR16L580
SMALLEST 2.25V TO 5.5V UART WITH 16-BYTE FIFO AND POWERSAVE
FIGURE 19. 68 MODE (MOTOROLA) DATA BUS WRITE TIMING
áç
REV. 1.2.0
A0-A2
CS#
R/W#
D0-D7
TADS
Valid Address
TCSL
TADH
TRWS
TCSD
TRWH
TWDS
Valid Data
T WDH
FIGURE 20. RECEIVE READY INTERRUPT TIMING [NON-FIFO MODE]
RX
Start
Bit
D0:D7
Stop
Bit
D0:D7
T_SSR
T_SSR
1 Byte
1 Byte
INT
in RHR
in RHR
IOR#
(Reading data
out of RHR)
T_RR
T_RR
Valid Address
Valid Data
68Write
D0:D7
T_SSR
1 Byte
in RHR
T_RR
RXNFM
40