xr16m890 Exar Corporation, xr16m890 Datasheet - Page 55

• Manufacturer Part Number: xr16m890
• Description: Uart With 128-byte Fifo And Integrated Level Shifters
• Manufacturer: Exar Corporation

REV. P1.1.1
F
F
IGURE
IGURE
D0-D7
A0-A2
CS#
IOR#
A0-A2
D0-D7
IOW#
CS#
20. 16 M
21. 16 M
T
AS
ODE
ODE
(I
(I
NTEL
NTEL
T
T
AS
RDV
) D
) D
ATA
ATA
Valid Address
Valid Address
B
T
B
T
T
RD
WR
T
US
US
CS
CS
T
Valid Data
Valid Data
UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
DS
R
W
EAD
RITE
T
T
IMING
IMING
PRELIMINARY
T
T
T
T
DH
DD
AH
AH
55
T
T
DY
DY
T
T
AS
T
AS
RDV
Valid Address
Valid Address
T
T
CS
T
CS
T
WR
T
RD
Valid Data
DS
Valid Data
XR16M890
T
T
T
DH
T
AH
DD
AH
16Write
RDTm