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EMAC Port Registers
5.3 Transmit Teardown Register (TXTEARDOWN)
The transmit teardown register (TXTEARDOWN) is shown in Figure 45 and described in Table 39.
Figure 45. Transmit Teardown Register (TXTEARDOWN)
31 30 16
TXTD
Reserved
NRDY
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 39. Transmit Teardown Register (TXTEARDOWN) Field Descriptions
Bit Field Value Description
31 TXTDNRDY 0 Transmit teardown ready. Read as zero, but is always assumed to be one (unused).
30-3 Reserved 0 Reserved
2-0 TXTDNCH Transmit teardown channel. The transmit teardown channel 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
97
SPRUEF8F–March 2006–Revised November 2010 C6472/TCI6486 EMAC/MDIO
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