User`s manual

MMGA Series CyberResearch
®
Motherboards
34 ©Copyright 2009 CyberResearch, Inc.
specifications
 Extended Capability Port (ECP) mode supported. Compatible with IEEE 1284
specifications
 Enhanced printer port back-drive current reduction
 Printer power-on damage reduction
 Supports POST (Power-On Self Test) Data Port
The parallel port controller is connected to an external DB-26 LPT connector.
2.8.3.10 Super I/O Watchdog Timer
The super I/O watchdog timer has a maximum time resolution of 1 minute or 1 second
with a maximum or either 65,535 minutes or 65,535 seconds.
2.8.4 Fintek F81216DG LPC Serial Port Chipset
The Fintek F81216DG chipset enables the addition of three additional UART serial ports
(COM2,COM3 and COM4). UART includes 16-byte send/receive FIFO. The Fintek serial
port chipset is interfaced to the Southbridge chipset through the LPC bus. Some of the
features of the Fintek chipset are listed below:
 Supports LPC interface
 Totally provides 4 UART (16550 asynchronous) ports
o 3 x Pure UART
o 1 x UART+IR
 One Watch dog timer with WDTOUT# signal
 One Frequency input 48MHz
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2.9 Ethernet LAN Controllers
The MMGA motherboard has two GbE controllers. The MMGA LAN connections are
shown in Figure 1-20.