IDT 89HPES24N3A, User Manual

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IDT PES24N3A Device Overview
PES24N3A User Manual 1 - 5 April 10, 2008
Notes
System Identification
Vendor ID
All vendor ID fields in the device are hardwired to 0x111D which corresponds to Integrated Device Tech-
nology, Inc.
Device ID
The PES24N3A device ID is shown in Table 1.1.
Revision ID
The PES24N3A revision ID is shown in Table 1.2.
JTAG ID
The JTAG ID is:
– Version: Same value as Revision ID. See Table 1.2
– Part number: Same value as base Device ID. See Table 1.1.
– Manufacturer ID: 0x33
– LSB: 0x1
SSID/SSVID
The PES24N3A contains the mechanisms necessary to implement the PCI-to-PCI bridge Subsystem ID
and Subsystem Vendor ID capability structure. However, in the default configuration the Subsystem ID and
Subsystem Vendor ID capability structure is not enabled. To enable this capability, the SSID and SSVID
fields in the Subsystem ID and Subsystem Vendor ID (SSIDSSVID) register must be initialized with the
appropriate ID values. the Next Pointer (NXTPTR) field in one of the other enhanced capabilities should be
initialized to point to this capability. Finally, the Next Pointer (NXTPTR) of this capability should be adjusted
to point to the next capability if necessary.
Device Serial Number Enhanced Capability
The PES24N3A contains the mechanisms necessary to implement the PCI express device serial
number enhanced capability. However, in the default configuration this capability structure is not enabled.
To enable the device serial number enhanced capability, the Serial Number Lower Doubleword
(SNUMLDW) and the Serial Number Upper Doubleword (SNUMUDW) registers should be initialized. The
Next Pointer (NXTPTR) field in one of the other enhanced capabilities should be initialized to point to this
capability. Finally, the Next Pointer (NXTPTR) of this capability should be adjusted to point to the next capa-
bility if necessary.
PCIe Device Device ID
0x
2
0x801C
Table 1.1 PES24N3A Device ID
Revision ID Description
0x0F Corresponds to ZA silicon
0x0E Corresponds to ZC silicon
0x0D Corresponds to ZG silicon
Table 1.2 PES24N3A Revision ID