Ethernet Subsystem Registers
14.5.2.7 CPDMA_SOFT_RESET Register (offset = 1Ch) [reset = 0h]
CPDMA_SOFT_RESET is shown in
and described in
CPDMA_REGS SOFT RESET REGISTER
Figure 14-35. CPDMA_SOFT_RESET Register
31
30
29
28
27
26
25
24
Reserved
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
SOFT_RESET
R-0h
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 14-46. CPDMA_SOFT_RESET Register Field Descriptions
Bit
Field
Type
Reset
Description
31-1
Reserved
R
0h
0
SOFT_RESET
R/W
0h
Software reset - Writing a one to this bit causes the CPDMA logic to
be reset.
Software reset occurs when the RX and TX DMA Controllers are in
an idle state to avoid locking up the VBUSP bus.
After writing a one to this bit, it may be polled to determine if the
reset has occurred.
If a one is read, the reset has not yet occurred.
If a zero is read then reset has occurred.
1264
Ethernet Subsystem
SPRUH73H – October 2011 – Revised April 2013
Copyright © 2011–2013, Texas Instruments Incorporated