IP-PCI/MT32 Altera, IP-PCI/MT32 Datasheet - Page 200

• Manufacturer Part Number: IP-PCI/MT32
• Description: IP CORE - 32-bit 66MHz PCI Master/Target
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IP-PCI/MT32

• Software Application: IP CORE, Interface And Protocols, PCI
• Supported Families: Arria GX, Cyclone, HardCopy II, MAX II, Stratix
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Function: PCI Compiler, Master/Target, 32 bit
• License: Initial License
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Master Mode Operation
3–126
PCI Compiler User Guide
Disconnect Without Data
The target device issues a disconnect without data if it is unable to
transfer additional data during the transaction. The signal pattern for this
termination is described in
pci_mt64 and pci_mt32 functions end a transaction because of a
disconnect without data, they assert lm_tsr[6] until the beginning of
the next master transaction.
Disconnect with Data
The target device issues a disconnect with data if it is unable to transfer
additional data in the transaction. The signal pattern for this termination
is described in
pci_mt32 functions end a transaction because of a disconnect with data,
they assert lm_tsr[7] until the beginning of the next master
transaction.
Target Abort
A target device issues this type of termination when a catastrophic failure
occurs in the target. The signal pattern for a target abort is shown in
“Target Abort” on page
functions end a transaction because of a target abort, they assert the
tabort_rcvd signal, which is the same as the PCI status register bit 12.
Therefore, the signal remains asserted until it is reset by the host.
Master Abort
The pci_mt64 and pci_mt32 functions terminate the transaction with
a master abort when no target claims the transaction by asserting
devseln. Except for special cycles and configuration transactions, a
master abort is considered to be a catastrophic failure. When a cycle ends
in a master abort, the pci_mt64 and pci_mt32 functions inform the
local-side device by asserting the mabort_rcvd signal, which is the same
as the PCI status register bit 13. Therefore, the signal remains asserted
until it is reset by the host.
PCI Compiler Version 10.1
“Disconnect” on page
3–86. When the pci_mt64 and pci_mt32
“Disconnect” on page
3–79. When the pci_mt64 and
3–79. When the
Altera Corporation
January 2011