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5.4 Transmit Teardown Register (TXTEARDOWN)
EMAC Port Registers
The transmit teardown register (TXTEARDOWN) is shown in Figure 32 and described in Table 32 .
Figure 32. Transmit Teardown Register (TXTEARDOWN)
31 16
Reserved
R-0
15 3 2 0
Reserved TXTDNCH
R-0 R/W-0
LEGEND: R/W = Read/Write; R = Read only; - n = value after reset
Table 32. Transmit Teardown Register (TXTEARDOWN) Field Descriptions
Bit Field Value Description
31-3 Reserved 0 Reserved
2-0 TXTDNCH 0-3h Transmit teardown channel. Transmit channel teardown is commanded by writing the encoded
value of the transmit channel to be torn down. The teardown register is read as zero.
0 Teardown transmit channel 0
1h Teardown transmit channel 1
2h Teardown transmit channel 2
3h Teardown transmit channel 3
4h Teardown transmit channel 4
5h Teardown transmit channel 5
6h Teardown transmit channel 6
7h Teardown transmit channel 7
SPRU975B – August 2006 Ethernet Media Access Controller (EMAC)/Management Data Input/Output (MDIO) 87
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