Video Controller; Clock Generation And Distribution; Ck409 Clock Generator - Intel SE7520BD2 Technical Product Specification

Intel® Server Board SE7520BD2 Technical Product Specification
2.10.3

Video Controller

The ATI* Rage XL video controller resides on the PCI 32-bit/33MHz bus of the ICH5-R. It
features the following:
•
5-V 32-bit/33-MHz PCI operation PCI Rev 2.3 compliant
•
PCI version 2.1 bus mastering with scatter/gather support
•
32-bit wide memory mapped registers
•
64-Mb SDRAM (512K * 32 * 4banks) at 143MHz
Instead of the 29.4-MHz crystal specified in the ATI Rage XL specification, a 14-MHz clock from
the CK409B clock generator is used to clock the ATI Rage XL controller. Marvell* "Yukon"
88E8050 – PCI-Express LAN controller
The Marvell* "Yukon" 88E8050 Gigabit Ethernet controller is a single, compact component with
integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions.
This device uses PCI Express architecture (Revision 1.0a). The Marvell "Yukon" 88E8050
controller provides a standard IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASE-TX,
and 10BASE-T applications (802.3, 802.3u, and 802.3ab). In addition to managing MAC and
PHY Ethernet layer functions, the controller manages PCI Express packet traffic across its
transaction link and physical/logical layers via a x1 PCI-Express link. The Marvell "Yukon"
88E8050 controller is packaged in a 64-pin, 9x9mm QFN package.
2.10.3.1 Intel® 82541PI Gigabit Ethernet Controller
The Intel® 82541PI Gigabit Ethernet controller is a single, compact component with an
integrated Gigabit Ethernet Media Access Control (MAC) and physical layer (PHY) functions.
The controller allows for Gigabit Ethernet implementation in a very small area. It integrates
fourth-generation gigabit MAC design with fully integrated, physical layer circuitry to provide a
standard IEEE 802.3 Ethernet interface for 1000BASE-T, 100BASE-TX, and 10BASE-T
applications (802.3, 802.3u, and 802.3ab). The controller is capable of transmitting and
receiving data at rates of 1000 Mbps, 100 Mbps, or 10 Mbps. The device interfaces with the
ICH5-R from the 32-bit PCI 2.3 compliant bus running at 33 MHz.

2.11 Clock Generation and Distribution

2.11.1

CK409 Clock Generator

The CK409 clock generator provides four differential output pairs for all of the bus agents: one
100-MHz differential output pair SRC (serial reference clock) for all PCI Express devices
through DB800 companion differential buffer, and three 66-MHz speed clocks that drive I/O
buses, 66-MHz clocks, 48-MHz clocks, 33-MHz clocks and 14-MHz clocks.
The clock generator is configured to support the following clocks:
•
Three host clock pairs for P1, P2, MCH
•
66-MHz clocks for the ICH5-R and MCH
•
33-MHz clocks for ICH5-R, SIO3, ATI* Rage XL video controller, FMM connector,
82541PI LAN controller, PCI 32-bit/33-MHz slot
•
48-MHz clocks for the ICH5-R and SIO3
•
14-MHz clocks for the ICH5-R and ATI* Rage XL video controller
Revision 1.3 Intel Confidential
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