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Spinlock
17.2.1.3 SYSTATUS Register (offset = 14h) [reset = 1000001h]
SYSTATUS is shown in Figure 17-47 and described in Table 17-60.
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
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