XR16C854 Datasheet, PDF (43/51 Pages) Exar Corporation – QUAD UART WITH RX/TX FIFO COUNTERS,128-BYTE FIFO

XR16C854
RX
-RXRDY
-IOR
RX
-RXRDY
-IOR
Rev. 1.00P
START
BIT
DATA BITS (5-8)
STOP
BIT
D0 D1 D2 D3 D4 D5 D6 D7
PARITY
BIT
NEXT
DATA
START
BIT
T25d
Active
Data
Ready
T26d
Active
X654-RX-2
Receive ready timing in none FIFO mode
START
BIT
DATA BITS (5-8)
STOP
BIT
D0 D1 D2 D3 D4 D5 D6 D7
PARITY
BIT
First byte
that reaches
the trigger
level
T25d
Active
Data
Ready
T26d
Receive timing in FIFO mode
Active
X654-RX-3
43