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1-20 Chapter 1: Product introduction
2. USB device wake-up (3-pin PS2_USB_PWR)
Set this jumper to +5V to wake up the computer from S1 sleep mode
(CPU stopped, DRAM refreshed, system running in low power mode)
using the connected USB devices. Set to +5VSB to wake up from S3
and S4 sleep modes (no power to CPU, DRAM in slow refresh, power
supply in reduced power mode).
• The USB device wake-up feature requires a power supply that can
provide 500mA on the +5VSB lead for each USB port; otherwise,
the system would not power up.
• The total current consumed must NOT exceed the power supply
capability (+5VSB) whether under normal condition or in sleep mode.
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A8V-VM SE USB Device Wake Up
PS2_USB_PWR
(Default)
+5V +5VSB
2 3
1
2
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A8V-VM SE