Dell R210 II Technical Manual

Also see for PowerEdge R210 II: Owner's manual Getting started guide Manual Portfolio guide Technical guide

Contents

Dell R210 II Technical Manual Manual pdf 34 page image

Dell PowerEdge R210 II Technical Guide 348.11 USB InterfaceThe C200 Series chipset contains up to two Enhanced Host Controller Interface (EHCI) host controllersthat support USB high-speed signaling. High-speed USB 2.0 allows data transfers up to 480 Mb/swhich is 40 times faster than full-speed USB. The chipset also contains up to seven Universal HostController Interface (UHCI) controllers that support USB full-speed and low-speed signaling.The chipset supports up to fourteen USB 2.0 ports. All fourteen ports are high-speed, full-speed, andlow-speed capable. The port-routing logic determines whether a USB port is controlled by one of theUHCI or EHCI controllers.8.12 Real-Time Clock (RTC)The Real Time Clock (RTC) module provides a battery backed-up date and time keeping device withtwo banks of static RAM with 128 bytes each, although the first bank has 114 bytes for generalpurpose usage. Three interrupt features are available: time of day alarm with once a second to oncea month range, periodic rates of 122 μs to 500 ms, and end of update cycle notification. Seconds,minutes, hours, days, day of week, month, and year are counted. Daylight savings compensation is nolonger supported. The hour is represented in twelve or twenty-four hour format, and data can berepresented in BCD or binary format. The design is functionally compatible with the MotorolaMS146818B. The time keeping comes from a 32.768 kHz oscillating source, which is divided toachieve an update every second. The lower 14 bytes on the lower RAM block has very specificfunctions. The first ten are for time and date information. The next four (0Ah to 0Dh) are registers,which configure and report RTC functions.8.13 GPIOVarious general purpose inputs and outputs are provided for custom system design. The number ofinputs and outputs varies depending on C200 series configuration.8.14 Enhanced Power ManagementThe C200 series power management functions include enhanced clock control and various low-power(suspend) states (for example, Suspend-to-RAM and Suspend-to-Disk). A hardware-based thermalmanagement circuit permits software-independent entrance to low-power states. The chipsetcontains full support for the Advanced Configuration and Power Interface (ACPI) Specification,Revision 3.0a.8.15 System Management FeaturesIn addition to Intel AMT, the C200 series chipset integrates several functions designed to manage thesystem and lower the total cost of ownership (TCO) of the system. These system management