XR17D154 Exar Corporation, XR17D154 Datasheet - Page 56

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

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PRELIMINARY
F
IGURE
H ost
AD[31:0]
N ote: PER R # and SER R are optional in a bus target application.
C/BE[3:0]#
DEVSEL#
H ost
FRAM E#
H ost
H ost
H ost
H ost
TRDY#
IRDY#
PERR#
SERR#
CLK
Target
Target
Even Parity is on AD [31:0], C /BE[3:0]#, and PAR
21. D
PAR
Target
Target
Target
Target
EVICE
1
C M D
Bus
AD
AD
C
ONFIGURATION
Active
Byte Enab le# = D W O R D
R
EGISTERS
8
D ata
D ata
Active
, UART R
56
13
EGISTERS AND
UNIVERSAL (3.3V AND 5V) PCI BUS QUAD UART
D ata
D ata
Active
R
ECEIVE
18
D ata
D ata
D
Active
ATA
B
URST
23
D ata
R
EAD
D ata
XR17D154
Active
O
REV. P1.0.0
PERATION
PC I_BR D