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Chapter 1: Introduction
Chapter 1
Introduction
1-1 An Overview of the WPCM 450 BMC Controller
The Nuvoton WPCM450 Controller, a Baseboard Management Controller (BMC),
supports 2D/VGA-compatible Graphic Cores with PCI interface, creating multi-media
virtualization via Keyboard/Video/Mouse Redirection (KVMR). The WPCM450 Con-
troller is ideal for networking management.
The WPCM450 Controller interfaces with the host system via PCI connections to
communicate with Graphic cores. It supports USB 2.0 and 1.1 for remote keyboard/
mouse/virtual media emulation. It also provides LPC interface support to control
Super IO functions. The WPCM450 Controller is connected to the network via an
external Ethernet PHY module or shared NCSI connections.
The WPCM450 communicates with onboard components via six SMBus interfaces,
PECI (Platform Environment Control Interface) buses, and General Purpose I/O
ports.
WPCM450 DDR2 Memory Interface
The WPCM450 supports 16-bit DDR2 memory with a speed of up to 220 MHz. The
motherboard supports 128 MB of shared memory between the BMC and onboard
graphics card. For best signal integrity, the WPCM450 provides point-to-point con-
nections.
WPCM450 PCI System Interface
The WPCM450 provides the 32-bit, 33 MHz 3.3V PCI interface, which is compliant
with the PCI Local Bus Specification Rev. 2.3. The PCI system interface connects
to the onboard PCI Bridge used by the graphics controller.
Other Features Supported by the WPCM BMC Controller
The WPCM450 supports the following features.
•
IPMI 2.0
•
Serial over LAN
•
KVM over LAN
