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Ethernet Subsystem Registers
14.5.2.6 RX_TEARDOWN Register (offset = 18h) [reset = 0h]
RX_TEARDOWN is shown in Figure 14-34 and described in Table 14-45.
CPDMA_REGS RX TEARDOWN REGISTER
Figure 14-34. RX_TEARDOWN Register
31 30 29 28 27 26 25 24
RX_TDN_RDY Reserved
R-0h R-0h
23 22 21 20 19 18 17 16
Reserved
R-0h
15 14 13 12 11 10 9 8
Reserved
R-0h
7 6 5 4 3 2 1 0
Reserved RX_TDN_CH
R-0h R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-45. RX_TEARDOWN Register Field Descriptions
Bit Field Type Reset Description
31 RX_TDN_RDY R 0h
Teardown Ready - read as zero, but is always assumed to be one
(unused).
30-3 Reserved R 0h
2-0 RX_TDN_CH R/W 0h Rx Teardown Channel -Receive channel teardown is commanded by
writing the encoded value of the receive channel to be torn down.
The teardown register is read as zero.
000 - teardown receive channel 0 ...
111 - teardown receive channel 7
1263
SPRUH73H–October 2011–Revised April 2013 Ethernet Subsystem
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