TSI148-133IL IDT, Integrated Device Technology Inc, TSI148-133IL Datasheet - Page 73

• Manufacturer Part Number: TSI148-133IL
• Description: IC PCI-VME BRIDGE 456PBGA
• Manufacturer: IDT, Integrated Device Technology Inc
• Series: Tsi148&Trade;r

Specifications of TSI148-133IL

• Applications: PCI-to-VME Bridge
• Interface: PCI
• Voltage - Supply: 3.3V
• Package / Case: 456-PBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 800-1905

Figure 11: PCI-VME Delayed Read Request
Tsi148 PCI/X-to-VME Bus Bridge User Manual
80A3020_MA001_13
Command
Command
Example PCI Read Transaction
In this example read, the transaction is separated into Request and Completion phases. The
following list, and
transaction, Request, and in the second part of the transaction, Completion.
1. A PCI bus master initiates a read request to a VME peripheral
2. The Tsi148 PCI Target decodes the request and issues a retry to the PCI bus master
3. The PCI Target stores the command and address information in the PCI Target’s read
4. The PCI Target makes a read request to the Linkage Module
Read Buffer
Read Buffer
buffer command queue
— Tsi148 supports one delayed read request
Data
Data
VME Master
PCI/X Target
Figure 11
Write Buffer
Write Buffer
and
Figure
Linkage Module
VMEbus
PCI/X Bus
12, show the steps taken in the first part of the
Read Buffer
Read Buffer
PCI/X Master
VME Slave
3. PCI/X Interface > PCI Mode
Write Buffer
Write Buffer
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