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OR3TP12 Datasheet(PDF) 68 Page - Agere Systems

Part # OR3TP12
Description  Field-Programmable System Chip (FPSC) Embedded Master/Target PCI Interface
PDF  128 Pages
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Manufacturer  AGERE [Agere Systems]
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OR3TP12 Datasheet(HTML) 68 Page - Agere Systems

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ORCA OR3TP12 FPSC
Data Sheet
Embedded Master/Target PCI Interface
March 2000
68
Lucent Technologies Inc.
Lucent Technologies Inc.
PCI Bus Core Target Controller Detailed Description (continued)
Example: Target Read from Configuration Space
Figure 23 shows the timing on the PCI interface for a Target read from configuration space. Accesses of configura-
tion space occurs without any involvement of the FPGA interface. All configuration space accesses are discon-
nected with data on the first data word, and are thus restricted from bursting. Address decode speed is medium,
and the PCI bus core signals that it is supplying the word of data by asserting trdyn one cycle after devseln is
asserted.
5-7375(F)
Figure 23. Target Configuration Read (PCI Bus, 32-Bit)
T0
T1
T2
T3
T4
T5
T6
ADDRESS
DATA
CFG RD
BYTE ENABLES
clk
framen
ad
c_ben
idsel
irdyn
devseln
trdyn
stopn



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