TSI148-133IL IDT, Integrated Device Technology Inc, TSI148-133IL Datasheet - Page 77

• 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 13: PCI-to-VME Posted Write
Tsi148 PCI/X-to-VME Bus Bridge User Manual
80A3020_MA001_13
Read Buffer
Read Buffer
Example PCI Write Transaction
In this example posted write transaction, the transaction completes in one phase through the
device. The following list, and
1. An external PCI bus master initiates a write to a VMEbus slave.
2. The PCI Target puts the address and command information in its command queue
3. The PCI Target puts the corresponding data into its data queue
4. The PCI Target accepts write data until the write buffer fills or the transaction ends.
5. The PCI Target then sends a transaction request to the Linkage Module.
— All write transactions are posted within the PCI Target’s write buffer data queue. The
PCI/X Target
VME Master
PCI Target’s write buffer data queue is 4 Kbytes.
Command
Command
Write Buffer
Write Buffer
Data
Data
Figure
Module Linkage
VMEbus
PCI/X Bus
13, show the steps taken in the transaction.
Read Buffer
Read Buffer
PCI/X Master
VME Slave
3. PCI/X Interface > PCI Mode
Write Buffer
Write Buffer
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