lan9313 Standard Microsystems Corp., lan9313 Datasheet - Page 46
lan9313
Manufacturer Part Number
lan9313
Description
Lan9313/lan9313i Three Port 10/100 Managed Ethernet Switch With Mii
Manufacturer
Standard Microsystems Corp.
Datasheet
1.LAN9313.pdf
(398 pages)
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Revision 1.2 (04-08-08)
STRAP NAME
auto_mdix_strap_1
manual_mdix_strap_1
autoneg_strap_1
speed_strap_1
Table 4.2 Soft-Strap Configuration Strap Definitions (continued)
DESCRIPTION
Port 1 Auto-MDIX Enable Strap: Configures the default
value for the Auto-MDIX functionality on Port 1 when the
AMDIXCTL bit in the
Indication Register
(PHY_SPECIAL_CONTROL_STAT_IND_x)
When configured low, Auto-MDIX is disabled. When
configured high, Auto-MDIX is enabled.
Note:
Port 1 Manual MDIX Strap: Configures MDI(0) or MDIX(1)
for Port 1 when the auto_mdix_strap_1 is low and the
AMDIXCTL bit of the
Indication Register
(PHY_SPECIAL_CONTROL_STAT_IND_x)
Port 1 Auto Negotiation Enable Strap: Configures the
default value for the
in the PHY_BASIC_CTRL_1 register (See
Section
disabled. When configured high, auto-negotiation is
enabled.
This strap also affects the default value of the following bits:
Refer to the respective register definition sections for
additional information.
Port 1 Speed Select Strap: Configures the default value
for the
the PHY_BASIC_CTRL_1 register (See
When configured low, 10 Mbps is selected. When
configured high, 100 Mbps is selected.
This strap also affects the default value of the following bits:
Refer to the respective register definition sections for
additional information.
PHY_SPEED_SEL_LSB and PHY_DUPLEX bits of the
Port x PHY Basic Control Register
(PHY_BASIC_CONTROL_x)
10BASE-T Full Duplex (bit 6) and 10BASE-T Half Duplex
(bit 5) bits of the
Advertisement Register (PHY_AN_ADV_x)
MODE[2:0] bits of the
(PHY_SPECIAL_MODES_x)
PHY_SPEED_SEL_LSB bit of the
Control Register (PHY_BASIC_CONTROL_x)
10BASE-T Full Duplex (bit 6) and 10BASE-T Half Duplex
(bit 5) bits of the
Advertisement Register (PHY_AN_ADV_x)
MODE[2:0] bits of the
(PHY_SPECIAL_MODES_x)
Speed Select LSB (PHY_SPEED_SEL_LSB)
13.2.2.1). When configured low, auto-negotiation is
If AMDIXCTL is set, this strap had no effect.
DATASHEET
Port x PHY Auto-Negotiation
Port x PHY Auto-Negotiation
Auto-Negotiation (PHY_AN)
Port x PHY Special Control/Status
Port x PHY Special Control/Status
Port x PHY Special Modes Register
Port x PHY Special Modes Register
46
Port x PHY Basic
Section
Three Port 10/100 Managed Ethernet Switch with MII
is cleared.
is cleared.
13.2.2.1).
enable bit
bit in
SMSC LAN9313/LAN9313i
PIN / DEFAULT
VALUE
AUTO_MDIX_1
0b
AUTO_NEG_1
SPEED_1
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