SC92031L SILAN [Silan Microelectronics Joint-stock], SC92031L Datasheet - Page 14

• Manufacturer Part Number: SC92031L
• Description: 10/100 MBPS INTEGRATED PCI ETHERNET MEDIA ACCESS CONTROLLER AND PHYSICAL LAYER
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

18 Power Management Configuration Register (Offset 007Ch, R/W)
HANGZHOU SILAN MICROELECTRONICS CO.,LTD
Http: www.silan.com.cn
27-26
23-0
Bit
31
30
29
28
25
24
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
-
PMEn
En_LongWF
En_Magic
LANWake
LOST
LinkUp
WakeUp
-
Symbol
Power Management Enable: Writable only when the motherboard is
detected support aux power.
Enable Long Wake-up Frame:
Set to 1: The chip supports up to 5 wake-up frames, each with 16-bit
CRC algorithm for MS Wakeup Frame.
Set to 0: The chip supports up to 8 wake-up frames, each with 8-bit
CRC algorithm for MS Wakeup Frame.
Magic Packet: This bit is valid when the PMEn bit is set. The chip will
assert the PMEB signal to wakeup the operating system when the
Magic Packet is received.
LANWake signal enable/disable:
1: Enable LANWake signal.
0: Disable LANWake signal.
Lwake Output Signal Type: According to the combination of these two
bits, there may be 4 choices of LWAKE signal, i.e., active high, active
low, positive (high) pulse, and negative (low) pulse. The output pulse
width is about 150ms. The default value of each of these two bits is 0,
i.e., the default output signal of LWAKE pin is an active high signal.
Link Up:
This bit is valid when the PWEn bit is set. The chip, in adequate power
state, will assert the PMEB signal to wakeup the operating system
when the cable connection is reestablished.
Wakeup Packet: This bit is valid when the PMEn bit is set. The chip will
assert the PMEB signal to wakeup the operating system when a valid
Wakeup Packet is received.
Reserved
LOST
00
01
10
11
LWAKE output
Active high
Active low
Positive pulse
Negative pulse
Description
REV:1.0
SC92031
Page 14 of 38
2004.08.03