xr16m890 Exar Corporation, xr16m890 Datasheet - Page 10

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

XR16M890
UART WITH 128-BYTE FIFO AND INTEGRATED LEVEL SHIFTERS
The VLIO bus interface is similar to the Intel bus interface. The only difference is that the address and data
lines are shared. A typical data bus interconnection is shown below in
F
1.1.3
IGURE
SLEEP /PW R D N
U AR T_R ESET #
U AR T _IO W #
U AR T_IO R #
U AR T_C S #
6. XR16M890 T
U AR T _IN T
VLIO bus interface
AD 0
AD 1
AD 2
AD 3
AD 4
AD 5
AD 6
AD 7
YPICAL
VLIO D
ATA
B
US
PRELIMINARY
I
NTERCONNECTIONS
10
AD 0
AD 1
AD 2
AD 3
AD 4
AD 5
AD 6
AD 7
R ESET #
IO R #
IO W #
C S #
SLEEP /PW R D N
IN T
Figure
VC C _BU S
VLIO _EN
D S R #
D TR #
R TS #
C TS #
6.
G N D
C D #
R I#
TX
R X
VC C _BU S
Serial Transceivers of
O r Infrared
R S-232
R S-485
R S-422
REV. P1.1.1