lan9311 Standard Microsystems Corp., lan9311 Datasheet - Page 46
lan9311
Manufacturer Part Number
lan9311
Description
Lan9311/lan9311i Two Port 10/100 Managed Ethernet Switch With 16-bit Non-pci Cpu Interface
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9311.pdf
(460 pages)
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Revision 1.2 (04-08-08)
4.3
eeprom_type_strap
eeprom_size_strap[1:0]
phy_addr_sel_strap
STRAP NAME
The LAN9311/LAN9311i Port 1 and Port 2 PHYs and the Host MAC support several power
management and wakeup features.
The LAN9311/LAN9311i can be programmed to issue an external wake signal (PME) via several
methods, including wake on LAN, wake on link status change (energy detect), and magic packet
wakeup. The PME signal is ideal for triggering system power-up using remote Ethernet wakeup events.
A simplified diagram of the logic that controls the PME and PME_INT signals can be seen in
Figure
The PME module handles the latching of the Port 1 & 2 PHY Energy-Detect Status (ED_STS1 and
ED_STS2) and Wake-On LAN Status (WOL_STS) bits of the
(PMT_CTRL). This module also masks the status bits with the corresponding enable bits (ED_EN1,
ED_EN2, WOL_EN) and combines the results together to generate the PME_INT status bit in the
Interrupt Status Register
conditioned before becoming the PME output pin.
The PME output characteristics can be configured via the PME_TYPE, PME_IND, and PME_POL bits
of the
active high push-pull, or active-low push-pull and configure the output to be continuous, or pulse for
50mS.
Power Management
Power Management Control Register
4.1.
Table 4.3 Hard-Strap Configuration Strap Definitions
EEPROM Type Strap: Configures the EEPROM type.
0 = Microwire Mode
1 = I
EEPROM Size Strap [1:0]: Configures the EEPROM size
range as specified in
EEPROM Controller," on page
PHY Address Select Strap: Configures the default MII
management address values for the PHYs and Virtual PHY
as detailed in
0
1
2
C Mode
(INT_STS). The PME_INT status bit is then masked with the PME_EN bit and
0
1
Section 7.1.1, "PHY Addressing," on page
DATASHEET
1
2
Section 10.2, "I2C/Microwire Master
DESCRIPTION
46
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
(PMT_CTRL). These bits allow the PME to be open-drain,
2
3
138.
Power Management Control Register
82.
SMSC LAN9311/LAN9311i
EEPROM_TYPE
EEPROM_SIZE_[1:0]
PHY_ADDR_SEL
PIN
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