Spinlock
17.2.1.3 SYSTATUS Register (offset = 14h) [reset = 1000001h]
SYSTATUS is shown in
and described in
.
This register provides status information about this instance of the Spin Lock module.
Figure 17-47. SYSTATUS Register
31
30
29
28
27
26
25
24
NUMLOCKS
R-1h
23
22
21
20
19
18
17
16
Reserved
R-100h
15
14
13
12
11
10
9
8
IU7
IU6
IU5
IU4
IU3
IU2
IU1
IU0
R-200h
R-400h
R-800h
R-1000h
R-2000h
R-4000h
R-8000h
R-10000h
7
6
5
4
3
2
1
0
Reserved
RESETDONE
R-800000h
R-1000001h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 17-60. SYSTATUS Register Field Descriptions
Bit
Field
Type
Reset
Description
31-24
NUMLOCKS
R
1h
23-16
Reserved
R
100h
15
IU7
R
200h
14
IU6
R
400h
13
IU5
R
800h
12
IU4
R
1000h
11
IU3
R
2000h
10
IU2
R
4000h
9
IU1
R
8000h
In-Use flag 1, covering lock registers
32 - 63.
Reads as one only if one or more lock registers in this range are
TAKEN.
If no lock registers are implemented in this range, then this flag
always reads as 0.
8
IU0
R
10000h
In-Use flag 0, covering lock registers
0 - 31.
Reads as one only if one or more lock registers in this range are
TAKEN.
7-1
Reserved
R
800000h
reserved
0
RESETDONE
R
1000001h
0: Reset in progress.
1: Reset is completed.
3311
SPRUH73H – October 2011 – Revised April 2013
Interprocessor Communication
Copyright © 2011–2013, Texas Instruments Incorporated