XR17C158 Exar Corporation, XR17C158 Datasheet - Page 47

• Manufacturer Part Number: XR17C158
• Description: Eight-channel Pci-based (UART)
• Manufacturer: Exar Corporation

XR17C158
REV. 1.0.0
F
IGURE
Host
AD[31:0]
Note: PERR# and SERR are optional in a bus target application.
C/BE[3:0]#
DEVSEL#
Host
FRAME#
Host
Host
Host
Host
IRDY#
TRDY#
PERR#
SERR#
CLK
Target
Target
Even Parity is on AD[31:0], C/BE[3:0]#, and PAR
19. D
PAR
Target
Target
Target
Target
EVICE
1
PCI BUS OCTAL UART
CMD
Bus
AD
AD
C
ONFIGURATION
Active
Byte Enable# = DWORD
R
EGISTERS
8
Data
Data
Active
, UART R
47
13
EGISTERS AND
Data
Data
Active
R
ECEIVE
18
Data
Data
D
Active
ATA
B
PRELIMINARY
URST
23
Data
R
EAD
Data
Active
O
PERATION
PCI_BRD