XR17D154 Exar Corporation, XR17D154 Datasheet - Page 55

• Manufacturer Part Number: XR17D154
• Description: Four-channel Pci-bus Uart
• Manufacturer: Exar Corporation

XR17D154
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
REV. P1.0.0
F
TION
IGURE
N o te : P E R R # a n d S E R R a re o p tio n a l in a b u s ta rg e t a p p lica tio n .
H o st
AD[31:0]
C/BE[3:0]#
DEVSEL#
H o st
FRAM E#
H o st
H o st
H o st
H o st
IRDY#
TRDY#
PERR#
SERR#
20. D
CLK
E ve n P a rity is o n A D [3 1 :0 ], C /B E [3 :0 ]# , a n d P A R
Ta rg e t
Ta rg e t
PAR
Ta rg e t
Ta rg e t
Ta rg e t
Ta rg e t
EVICE
1
A ddress
C M D
C
B us
ONFIGURATION REGISTERS
2
D W O R D
A ddress
P arity
D ata
B yte E nable# = D W O R D
3
D W O R D
A ctive
P arity
D ata
D ata
4
D W O R D
A ctive
P arity
D ata
D ata
, UART R
5
D W O R D
A ctive
P arity
D ata
D ata
55
EGISTERS AND
6
A ctive
P arity
D ata
D a ta D W O R D
7
A ctive
T
RANSMIT
8
D
ATA
9
P arity
D ata
B
PRELIMINARY
URST
10
A ctive
áç
áç
áç
áç
W
RITE
11
P C I_B W R
O
PERA
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