Dell External OEMR XL R210 Technical Guide - Page 36

Real-Time Clock RTC, Enhanced Power Management, System Management Features

Get Dell External OEMR XL R210 PDF manuals and user guides View all Dell External OEMR XL R210 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 36 highlights

Dell 8.12 Real-Time Clock (RTC) The Ibex Peak contains a real-time clock with 256 bytes of battery-backed RAM. The real-time clock performs two key functions: keeping track of the time of day and storing system data, even when the system is powered down. The RTC operates on a 32.768 KHz crystal and a 3 V battery. The RTC also supports two lockable memory ranges. By setting bits in the configuration space, two 8-byte ranges can be locked to read and write accesses. This prevents unauthorized reading of passwords or other system security information. The RTC also supports a date alarm that allows for scheduling a wake up event up to 30 days in advance, rather than just 24 hours in advance. 8.13 GPIO Various general purpose inputs and outputs are provided for custom system design. The number of inputs and outputs varies depending on Ibex Peak configuration. 8.14 Enhanced Power Management The Ibex Peak's power management functions include enhanced clock control and various lowpower (suspend) states (e.g., Suspend-to-RAM and Suspend-to-Disk). A hardware-based thermal management circuit permits software-independent entrance to low-power states. The Ibex Peak contains full support for the Advanced Configuration and Power Interface (ACPI) Specification, Revision 3.0a. 8.15 System Management Features In addition to Intel AMT, the Ibex Peak integrates several functions designed to manage the system and lower the total cost of ownership (TCO) of the system. These system management functions are designed to report errors, diagnose the system, and recover from system lockups without the aid of an external microcontroller. 8.15.1 TCO Timer The Ibex Peak's integrated programmable TCO (Total Cost of Ownership) timer is used to detect system locks. The first expiration of the timer generates an SMI# that the system can use to recover from a software lock. The second expiration of the timer causes a system reset to recover from a hardware lock. 8.15.2 Processor Present Indicator The Ibex Peak looks for the processor to fetch the first instruction after reset. If the processor does not fetch the first instruction, the Ibex Peak will reboot the system. 8.15.3 Error Code Correction (ECC) Reporting When detecting an ECC error, the host controller has the ability to send one of several messages to the Ibex Peak. The host controller can instruct the Ibex Peak to generate an SMI#, NMI, SERR#, or TCO interrupt. PowerEdge R210 Technical Guide 36

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
Dell
PowerEdge R210 Technical Guide
36
8.12
Real-Time Clock (RTC)
The Ibex Peak contains a real-time clock with 256 bytes of battery-backed RAM.
The real-time clock performs two key functions: keeping track of the time of day and storing
system data, even when the system is powered down. The RTC operates on a 32.768 KHz
crystal and a 3 V battery.
The RTC also supports two lockable memory ranges. By setting bits in the configuration space,
two 8-byte ranges can be locked to read and write accesses. This prevents unauthorized
reading of passwords or other system security information.
The RTC also supports a date alarm that allows for scheduling a wake up event up to 30 days in
advance, rather than just 24 hours in advance.
8.13
GPIO
Various general purpose inputs and outputs are provided for custom system design. The number
of inputs and outputs varies depending on Ibex Peak configuration.
8.14
Enhanced Power Management
The Ibex Peak’s power management functions include enhanced clock control and various low-
power (suspend) states (e.g., Suspend-to-RAM and Suspend-to-Disk). A hardware-based thermal
management circuit permits software-independent entrance to low-power states. The Ibex
Peak contains full support for the Advanced Configuration and Power Interface (ACPI)
Specification, Revision 3.0a.
8.15
System Management Features
In addition to Intel AMT, the Ibex Peak integrates several functions designed to
manage the system and lower the total cost of ownership (TCO) of the system. These
system management functions are designed to report errors, diagnose the system, and
recover from system lockups without the aid of an external microcontroller.
8.15.1
TCO Timer
The Ibex Peak’s integrated programmable TCO (Total Cost of Ownership) timer is used
to detect system locks. The first expiration of the timer generates an SMI# that the
system can use to recover from a software lock. The second expiration of the timer
causes a system reset to recover from a hardware lock.
8.15.2
Processor Present Indicator
The Ibex Peak looks for the processor to fetch the first instruction after reset. If the
processor does not fetch the first instruction, the Ibex Peak will reboot the system.
8.15.3
Error Code Correction (ECC) Reporting
When detecting an ECC error, the host controller has the ability to send one of several
messages to the Ibex Peak. The host controller can instruct the Ibex Peak to generate
an SMI#, NMI, SERR#, or TCO interrupt.