IPR-PCIE/8 Altera, IPR-PCIE/8 Datasheet - Page 127

• Manufacturer Part Number: IPR-PCIE/8
• Description: IP CORE Renewal Of IP-PCIE/8
• Manufacturer: Altera
• Type: MegaCorer

Specifications of IPR-PCIE/8

• Software Application: IP CORE, Interface And Protocols, PCI
• Supported Families: Arria GX, Cyclone II, HardCopy II, Stratix II
• Core Architecture: FPGA
• Core Sub-architecture: Arria, Cyclone, Stratix
• Rohs Compliant: NA
• Function: PCI Express Compiler, x8 Link Width
• License: Renewal License
• Lead Free Status / RoHS Status: na
• Lead Free Status / RoHS Status: na

Specifications
Altera Corporation
December 2006
ko_cpl_spc_vc
where n is 0 - 3 for the x1 and
x4 cores, and 0 - 1 for the x8
core
Table 3–37. Maximum Completion Space Signals
Signal
n
[19:0]
Maximum Completion Space Signals
Table 3–37
alt2gxb Support Signals
This section describes signals alt2gxb support signals, which are only
present on variants that use the Stratix II GX integrated PHY, ALT2GXB.
They are connected directly to the ALT2GXB instance. In many cases
these signals need to be shared with ALT2GXB instances that will be
implemented in the same device. The following signals exist:
■
■
■
■
Table 3–38
O
I/O
cal_blk_clk
reconfig_clk
reconfig_togxb
reconfig_fromgxb
This static signal reflects the amount of Rx Buffer space reserved for
completion headers and data. It provides the same information as what is
shown in the Rx buffer space allocation table of the wizard’s Buffer Setup
page (see
this signal are:
●
●
The application layer logic is responsible for making sure that the
completion buffer space does not overflow. It needs to limit the number and
size of non-posted requests outstanding to ensure this.
PCI Express Compiler Version 6.1
ko_cpl_spc_vcn[7:0]
be stored in the Rx buffer.
ko_cpl_spc_vcn[19:8]
segments that can be stored in the Rx buffer.
shows the maximum completion space signals.
describes these alt2gxb support signals.
“Buffer Setup Page” on page
Description
: Number of completion headers that can
: Number of 16-byte completion data
PCI Express Compiler User Guide
3–37). The bit field assignments for
3–89