XR17C158 Exar Corporation, XR17C158 Datasheet - Page 44

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

PRELIMINARY
F
IGURE
16. PCI B
US
C
ONFIGURATION
Host
Host
C/BE[3:0]#
Host
Host
C/BE[3:0]#
Host
Host
Host
Host
Host
Host
FRAME#
AD[31:0]
FRAME#
AD[31:0]
DEVSEL#
DEVSEL#
TRDY#
TRDY#
IRDY#
IRDY#
CLK
CLK
Target
Target
Target
Target
Target
Target
S
PACE
1
1
ADDRESS
ADDRESS
CFG-WR
CFG-RD
R
EGISTERS
2
2
44
BYTE ENABLE#
BYTE ENABLE#
WRITE DATA
R
EAD AND
3
3
DATA
W
PCI BUS OCTAL UART
4
4
RITE OPERATION
PCICFG_WR
PCICFG_RD
XR17C158
REV. 1.0.0