Texas Instruments TMS320DM36X - Manual (Page 110)

Ethernet Media Access Controller (EMAC) Registers www.ti.com
Table 66. MAC Control Register (MACCONTROL) Field Descriptions (continued)
Bit Field Value Description
4 TXFLOWEN Transmit flow control enable bit. This bit determines if incoming pause frames are acted upon
in full-duplex mode. Incoming pause frames are not acted upon in half-duplex mode,
regardless of the TXFLOWEN bit setting. The RXMBPENABLE bits determine whether or not
received pause frames are transferred to memory.
0 Transmit flow control is disabled. Full-duplex mode: incoming pause frames are not acted
upon.
1 Transmit flow control is enabled. Full-duplex mode: incoming pause frames are acted upon.
3 RXBUFFERFLOWEN Receive buffer flow control enable bit.
0 Receive flow control is disabled. Half-duplex mode: no flow control generated collisions are
sent. Full-duplex mode: no outgoing pause frames are sent.
1 Receive flow control is enabled. Half-duplex mode: collisions are initiated when receive buffer
flow control is triggered. Full-duplex mode: outgoing pause frames are sent when receive flow
control is triggered.
2 Reserved 0 Reserved
1 LOOPBACK Loopback mode. The loopback mode forces internal full-duplex mode regardless of the
FULLDUPLEX bit setting. The loopback bit should be changed only when MII bit is
deasserted.
0 Loopback mode is disabled.
1 Loopback mode is enabled.
0 FULLDUPLEX Full-duplex mode.
0 Half-duplex mode is enabled.
1 Full-duplex mode is enabled.
110 Ethernet Media Access Controller (EMAC)/Management Data Input/Output SPRUFI5B – March 2009 – Revised December 2010
(MDIO)
Submit Documentation Feedback
© 2009–2010, Texas Instruments Incorporated