LAN9303MI-AKZE Datasheet, PDF (168/386 Pages) SMSC Corporation – Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII

Small Form Factor Three Port 10/100 Managed Ethernet Switch with Dual MII/RMII/Turbo MII
Datasheet
13.2.4.3 Port 0 Manual Flow Control Register (MANUAL_FC_0)
Offset:
1A8h
Size:
32 bits
This read/write register allows for the manual configuration of the switch Port 0 flow control. This
register also provides read back of the currently enabled flow control settings, whether set manually
or Auto-Negotiated. Refer to Section 6.2.3, "Flow Control Enable Logic," on page 70 for additional
information.
Note: The flow control values in the Section 13.2.6.5, "Virtual PHY Auto-Negotiation Advertisement
Register (VPHY_AN_ADV)," on page 188 are not affected by the values of this register.
BITS
DESCRIPTION
31:7 RESERVED
6 Port 0 Backpressure Enable (BP_EN_0)
This bit enables/disables the generation of half-duplex backpressure on
switch Port 0.
0: Disable backpressure
1: Enable backpressure
5 Port 0 Current Duplex (CUR_DUP_0)
This bit indicates the actual duplex setting of switch Port 0.
0: Full-Duplex
1: Half-Duplex
4 Port 0 Current Receive Flow Control Enable (CUR_RX_0)
This bit indicates the actual receive flow setting of switch Port 0
0: Flow control receive is currently disabled
1: Flow control receive is currently enabled
3 Port 0 Current Transmit Flow Control Enable (CUR_TX_FC_0)
This bit indicates the actual transmit flow setting of switch Port 0.
0: Flow control transmit is currently disabled
1: Flow control transmit is currently enabled
2 Port 0 Receive Flow Control Enable (RX_FC_0)
When the MANUAL_FC_0 bit is set, or Virtual Auto-Negotiation is disabled,
this bit enables/disables the detection of full-duplex Pause packets on switch
Port 0.
0: Disable flow control receive
1: Enable flow control receive
1 Port 0 Transmit Flow Control Enable (TX_FC_0)
When the MANUAL_FC_0 bit is set, or Virtual Auto-Negotiation is disabled,
this bit enables/disables full-duplex Pause packets to be generated on
switch Port 0.
0: Disable flow control transmit
1: Enable flow control transmit
TYPE
RO
R/W
RO
RO
RO
R/W
R/W
DEFAULT
-
Note 13.13
Note 13.14
Note 13.14
Note 13.14
Note 13.15
Note 13.15
Revision 1.5 (07-08-11)
168
DATASHEET
SMSC LAN9303M/LAN9303Mi