Intel D850MDL Product Guide - Page 20

Resume on Ring

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Intel Desktop Boards D850MD and D850MV Product Guide Table 4. Standby Current Requirements Instantly Available Current Support Estimate for integrated board components Estimate for add-on components (Add to integrated board components shown above) Description Total for the D850MD or D850MV boards PS/2 ports** PCI 2.2 slots (wake-enabled) PCI 2.2 slots (non-wake-enabled) CNR** (wake enabled) CNR** (non-wake enabled) USB ports** Standby Current Requirements (mA) 770* 345 375 100 875 40 700 * Refer to the Intel® Desktop Board D850MV/D850MD Technical Product Specification for the exact standby current requirements ** Dependent upon system configuration ✏ NOTE PCI requirements are calculated by totaling the following: • One wake-enabled device @ 375 mA • Five non- wake-enabled devices @ 20 mA each PS/2 Ports requirements per the IBM PS/2 Port Specification (Sept 1991): • Keyboard @ 275 mA • Mouse @ 70 mA USB requirements are calculated by totaling the following: • One wake-enabled device @ 500 mA • USB hub @ 100 mA • Three USB non-wake-enabled devices @ 2.5 mA each The USB ports are limited to a combined total of 700 mA. Resume on Ring The operation of Resume on Ring can be summarized as follows: • Resumes operation from either the APM sleep mode or the ACPI S1 state • Requires only one call to access the computer • Detects incoming calls similarly for external and internal modems • Requires modem interrupt be unmasked for correct operation 20

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Intel Desktop Boards D850MD and D850MV Product Guide
20
Table 4.
Standby Current Requirements
Instantly Available Current
Support
Description
Standby Current
Requirements (mA)
Estimate for integrated board
components
Total for the D850MD or D850MV
boards
770*
PS/2 ports
**
345
PCI 2.2 slots (wake-enabled)
375
PCI 2.2 slots (non-wake-enabled)
100
CNR** (wake enabled)
875
CNR** (non-wake enabled)
40
Estimate for add-on components
(Add to integrated board
components shown above)
USB ports
**
700
*
Refer to the
Intel
®
Desktop Board D850MV/D850MD Technical Product Specification
for the exact standby current
requirements
** Dependent upon system configuration
✏
NOTE
PCI requirements are calculated by totaling the following:
•
One wake-enabled device @ 375 mA
•
Five non- wake-enabled devices @ 20 mA each
PS/2 Ports requirements per the IBM PS/2 Port Specification (Sept 1991):
•
Keyboard @ 275 mA
•
Mouse @ 70 mA
USB requirements are calculated by totaling the following:
•
One wake-enabled device @ 500 mA
•
USB hub @ 100 mA
•
Three USB non-wake-enabled devices @ 2.5 mA each
The USB ports are limited to a combined total of 700 mA.
Resume on Ring
The operation of Resume on Ring can be summarized as follows:
•
Resumes operation from either the APM sleep mode or the ACPI S1 state
•
Requires only one call to access the computer
•
Detects incoming calls similarly for external and internal modems
•
Requires modem interrupt be unmasked for correct operation