High Performance Two Port 10/100 Managed Ethernet Switch with
Datasheet
Table 4.2
STRAP NAME | DESCRIPTION | PIN / DEFAULT | |
VALUE | |||
|
| ||
|
|
| |
manual_FC_strap_1 | Port 1 Manual Flow Control Enable Strap: Configures the | 0b | |
| default value of the Port 1 |
| |
| Select (MANUAL_FC_1) bit in the Port 1 Manual Flow |
| |
| Control Register (MANUAL_FC_1). When configured low, |
| |
| flow control is determined by |
| |
| and symmetric PAUSE is advertised (bit 10 of the Port x |
| |
|
| ||
| (PHY_AN_ADV_x) is set). |
| |
| When configured high, flow control is determined by the |
| |
|
| ||
|
| ||
| Enable (RX_FC_1) bits, and symmetric PAUSE is not |
| |
| advertised (bit 10 of the Port x PHY |
| |
| Advertisement Register (PHY_AN_ADV_x) is cleared). |
| |
|
|
| |
auto_mdix_strap_2 | Port 2 | AUTO_MDIX_2 | |
| value for the |
| |
| AMDIXCTL bit in the Port x PHY Special Control/Status |
| |
|
| ||
| (PHY_SPECIAL_CONTROL_STAT_IND_x) is cleared. |
| |
| When configured low, |
| |
| configured high, |
| |
| Note: If AMDIXCTL is set, this strap had no effect. |
| |
|
|
| |
manual_mdix_strap_2 | Port 2 Manual MDIX Strap: Configures MDI(0) or MDIX(1) | 0b | |
| for Port 2 when the auto_mdix_strap_2 is low and the |
| |
| AMDIXCTL bit of the Port x PHY Special Control/Status |
| |
|
| ||
| (PHY_SPECIAL_CONTROL_STAT_IND_x) is cleared. |
| |
|
|
| |
autoneg_strap_2 | Port 2 Auto Negotiation Enable Strap: Configures the | 1b | |
| default value for the |
| |
| in the PHY_BASIC_CTRL_2 register (See |
| |
| Section 14.4.2.1). When configured low, |
| |
| disabled. When configured high, |
| |
| enabled. |
| |
| This strap also affects the default value of the following bits: |
| |
| PHY_SPEED_SEL_LSB and PHY_DUPLEX bits of the |
| |
|
| ||
|
| ||
| |
| |
| (bit 5) bits of the Port x PHY |
| |
|
| ||
| MODE[2:0] bits of the Port x PHY Special Modes Register |
| |
|
| ||
| Refer to the respective register definition sections for |
| |
| additional information. |
| |
|
|
|
SMSC LAN9312 | 43 | Revision 1.4 |
| DATASHEET |
|