Intel® Server Board SE7520AF2 TPS
Functional Architecture
Revision 1.2
35
Intel order number C77866-003
Table 2. PCI-X Hot-Plug LED Function Table
LED
Off
On (Solid)
Blinking
Power LED
All main voltage and data
rails are removed from slot.
PCI adapter may be added or
removed
Normal power to slot. PCI
adapter may NOT be added
or removed
Slot power in transition (on-off or
off-on). PCI adapter may NOT be
added or removed
Attention LED
Normal operation
Slot on attention; power fault
or operational problem
present on the slot
Slot being identified at the user’s
request to locate the slot via the
Hot-Plug Interface Driver
Note:
PCI Slot 6 does not provide hot plug support. A power LED (green) is available adjacent
to this slot and is always On to indicate the slot has power and that an adapter should not be
hot-added or hot-removed.
3.1.3
IOP332 I/O Processor
The IOP332 I/O processor is a 500MHz multi-function device that integrates the Intel® XScale™
core (ARM* architecture compliant) with intelligent peripherals and dual PCI Express*-to-PCI
bridges.
The IOP332 PCI Express* upstream link is capable of x8 lane width at 2.5GHz operation as
defined by the PCI Express* Specification, Rev 1.0. This I/O processor integrates dual PCI
Express*-to-PCI bridges with the Address Translation Unit (ATU) as an integrated secondary
PCI device. The upstream PCI Express* port implements the PCI-to-PCI bridge programming
model according to the
PCI Express Specification, Rev 1.0
. The primary ATU is compliant with
the
Addendum to the PCI Local Bus Specification, Rev 1.0a
definitions of an application bridge.
The IOP332 I/O processor is fully compliant with the
PCI Local Bus Specification, Rev 2.3
and
the
PCI
Express* Specification, Rev 1.0.
The IOP332 I/O processor on the Intel® Server Board SE7520AF2 is enabled via a x4 PCI
Express* port from the MCH. This I/O processor enables RAID On Mother Board (ROMB)
support with the optional Intel® RAID Activation Key accessory and presence of RAID memory.
For more details on the ROMB functionality see section 3.4.4 and Chapter 4.
In the absence of the Intel® RAID Activation Key, this I/O processor emulates the functionality
of a PXH device. In the Intel® SE7520AF2 Server Board, the IOP332 is configured to support
the following interfaces:
IOP Segment A: LSI Logic* 53C1030 Dual Channel U320 SCSI controller enabling entry
level RAID support (LSI Logic* Integrated Mirroring and Integrated Striping).
IOP Segment B: One PCI-X slot (Slot 1 PCI-X 64/133) with maximum speed of 133MHz.
Slot also enables PCI hot-plug support in the SE7520HPAF2 SKU.
3.1.4
I/O Controller Hub (ICH5-R)
The ICH5-R is a multi-function device providing an upstream hub interface for access to several
embedded I/O functions and features including:
PCI Local Bus Specification, Revision 2.3
with support for 33 MHz PCI operations