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ADSP-SC58x RCU Register Descriptions
System Interface Status Register
The RCU system interface status register (RCU_SISTAT) indicates whether a functional unit has or has not ac-
knowledged an RCU unit disable request.
Figure 6-9: RCU_SISTAT Register Diagram
Table 6-14: RCU_SISTAT Register Fields
Bit No.
(Access)
1:0
SI[n]
(R/NW)
6–22
15
14
13
12
0
0
0
0
SI[n] (R)
System Interface Disable Acknowledge
[1:0]
31
30
29
28
0
0
0
0
Bit Name
System Interface Disable Acknowledge [1:0].
The RCU_SISTAT.SI[n] bit indicates whether a functional unit has or has not ac-
knowledged an RCU unit disable request.
ADSP-SC58x/ADSP-2158x SHARC+ Processor Hardware Reference
11
10
9
8
7
6
5
4
0
0
0
0
0
0
0
0
27
26
25
24
23
22
21
20
0
0
0
0
0
0
0
0
Description/Enumeration
0 No Acknowledge
3 SI_DISABLE_ACK[1:0] asserted
3
2
1
0
0
0
0
0
19
18
17
16
0
0
0
0
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