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Themis Computer
RES-XR4-3U Installation Manual
Version 1.3
1.4.6
Super I/O
The Super I/O supports two high-speed,16550 compatible serial communication
ports (UARTs). Each UART includes a 16-byte send/receive FIFO, a programmable
baud rate generator, complete modem control capability and a processor interrupt
system. Both UARTs provide legacy speed with baud rate of up to 115.2 Kbps as
well as an advanced speed with baud rates of 250 K, 500 K, or 1 Mb/s, which sup-
port higher speed modems.
The Super I/O provides functions that comply with ACPI (Advanced Configuration
and Power Interface), which includes support of legacy and ACPI power manage-
ment through an SMI or SCI function pin. It also features auto power management to
reduce power consumption.
1.4.7
Overview of the Nuvoton WPCM450R Controller
The Winbond WPCM450R Controller is a Baseboard Management Controller
(BMC) that supports the 2D/VGA-compatible Graphics Core with the PCI interface,
Virtual media, and keyboard/Video/Mouse Redirection (KVMR). With blade-ori-
ented Super I/O capability built-in, the WPCM450R Controller is ideal for remote
system management.
The WPCM450R interfaces with the host system via a PCI interface to communicate
with the Graphics core. It supports USB 2.0 and 1.1 for remote keyboard/mouse/vir-
tual media emulation. It also provides LPC interface to control Super I/O functions.
The WPCM450R is connected to the network via n external Ethernet PHY module,
or shared NCSI connections.
The WPCM450R communicates with onboard components via six SMBus inter-
faces, PECI (Platform Environment Control Interface) buses, and General Purpose
I/O ports.
1.4.7.1 WPCM450R DDR2 Memory Interface
The WPCM450R supports a 16-bit DDR2 memory module with a speed of up to
220MHz. The WPCM450R is a point-to-point connection for better signal integrity.
1.4.7.2 WPCM450R PCI System Interface
The WPCM450R provides a 32-bit, 33 MHz, 3.3v PCI interface, that is compliant
with PCI Local Bus Specification Rev. 2.3. The PCI system interface connects to the
onboard PCI Bridge used by the graphics controller.
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