Analog Devices ADSP-SC58 Series Hardware Reference Manual page 240

Status Register
The RCU status register (RCU_STAT) contains status bits for all RCU reset sources, reset status, and boot mode
inputs. Status bits for reset sources are sticky and can cleared by software. Error status bits are cleared by any reset
event.
BMODE (R)
Boot Mode
RSTOUT (R)
Reset Out Status
SWRST (R/W1C)
Software Reset
RSTOUTERR (R/W1C)
Reset Out Error
LWERR (R/W1C)
Lock Write Error
Figure 6-10: RCU_STAT Register Diagram
Table 6-15: RCU_STAT Register Fields
Bit No.
(Access)
18 RSTOUTERR
(R/W1C)
17 LWERR
(R/W1C)
ADSP-SC58x/ADSP-2158x SHARC+ Processor Hardware Reference
15 14 13 12 11
0 0 0 X X
31 30 29 28 27
0 0 0 0 0
Bit Name
Reset Out Error.
The RCU_STAT.RSTOUTERR bit indicates (if set) that a write attempted to set the
RCU_CTL.RSTOUTASRT and RCU_CTL.RSTOUTDSRT simultaneously. This
condition triggers a bus error.
Lock Write Error.
The RCU_STAT.LWERR bit indicates (when set) there was an attempted write to an
RCU register while the RCU_CTL.LOCK bit was set and the global lock bit is enabled
(SPU_CTL.GLCK bit =1). This status bit is sticky; write-1-to-clear
10 9 8 7 6 5 4 3
X X X 0 0 1 0 0
26 25 24 23 22 21 20 19
0 0 0 0 0 0 0 0
Description/Enumeration
0 No Error
1 Error Occurred
0 No Error
1 Error Occurred
ADSP-SC58x RCU Register Descriptions
2 1 0
0 0 1
HWRST (R/W1C)
Hardware Reset
SSRST (R/W1C)
System Source Reset
18 17 16
0 0 0
ADDRERR (R/W1C)
Address Error
6–23