EVB9311 SMSC, EVB9311 Datasheet - Page 132
EVB9311
Manufacturer Part Number
EVB9311
Description
EVALUATION BOARD LAN9311-NU
Manufacturer
SMSC
Series
0133r
Datasheet
1.LAN9311-NU.pdf
(460 pages)
Specifications of EVB9311
Main Purpose
Interface, Ethernet
Embedded
No
Utilized Ic / Part
LAN9311
Primary Attributes
2 Ports, 100BASE-TX/10BASE-T, Managed
Secondary Attributes
2 PHYs with HP Auto-MDIX, Auto- Flow Control, 32-bit CRC, MDI/MDI-X
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
638-1076
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Revision 1.7 (06-29-10)
9.8.7
9.8.8
Transmitter Errors
If the Transmitter Error (TXE) flag is asserted for any reason, the transmitter will continue operation.
TX Error (TXE) will be asserted under the following conditions:
Stopping and Starting the Transmitter
To halt the transmitter, the host must set the STOP_TX bit in the
(TX_CFG). The transmitter will finish sending the current frame (if there is a frame transmission in
progress). When the transmitter has received the TX status for this frame, it will clear the STOP_TX
and TX_ON bits, and will pulse the TXSTOP_INT in the
Once stopped, the host can optionally clear the TX Status and TX Data FIFOs. The host must re-
enable the transmitter by setting the TX_ON bit. If the there are frames pending in the TX Data FIFO
(i.e., TX Data FIFO was not purged), the transmission will resume with this data.
If the actual packet length count does not match the Packet Length field as defined in the TX
command.
Both TX command ‘A’ and TX command ‘B’ are required for each buffer in a given packet. TX
command ‘B’ must be identical for every buffer in a given packet. If the TX command ‘B’ words do
not match, the Ethernet controller will assert the Transmitter Error (TXE) flag.
Host overrun of the TX Data FIFO.
Overrun of the TX Status FIFO (unless TXSAO is enabled)
DATASHEET
132
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Interrupt Status Register
Transmit Configuration Register
SMSC LAN9311/LAN9311i
(INT_STS).
Datasheet
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