Table 1145. Wisr Field Descriptions - STMicroelectronics SPC572L series Reference Manual

RM0400
Field
Reset Destination Source Select
00 Reset request to RGM
RDSS
01 No reaction
10 No reaction
11 No reaction
Reset Wakeup Request Enable
RWRE
1 A set RIF bit or set ROVF bit causes a system wakeup request
0 System wakeup requests from the corresponding RIF bit are disabled
Reset Rising-edge Events Enable
RREE
1 Rising-edge event is enabled
0 Rising-edge event is disabled
Reset Falling-edge Events Enable
RFEE
1 Falling-edge event is enabled
0 Falling-edge event is disabled
Note: Writing a '0' to both NREE[x] and NFEE[x] disables the NMI functionality completely (i.e., no
system wakeup or interrupt is generated on any pad activity).
Note: Writing to the NCR when NIF = 1 or NOVF = 1 causes an interrupt to the destination
source/system wakeup to be generated independent of an NMI wakeup event.
69.3.2.3 Wakeup/Interrupt Status Flag Register (WISR)
This register holds the wakeup/interrupt flags.
Address: 0x0014
0 1 2 3
R 0 0 0 0 0 0 0 0 0 0 0 0 0
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Figure 1210. Wakeup/Interrupt Status Flag Register (WISR)
Field
External Wakeup/Interrupt Status Flag x. This flag can be cleared only by writing a 1. Writing a 0 has
no effect. If enabled (IRER[x]), EIF[x] causes an interrupt request.
EIF[x]
1An event as defined by WIREER and WIFEER has occurred
0 No event has occurred on the pad
Note: Status bits associated with on-chip wakeup sources are located to the left of the external
wakeup/interrupt status bits and are read only. The wakeup for these sources must be
configured and cleared at the on-chip wakeup source. Also, the configuration registers for
the external interrupts/wakeups do not have corresponding bits.
Table 1144. NCR field descriptions(Continued)
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

Table 1145. WISR field descriptions

Description
0 0
Description
DocID027809 Rev 4
Wakeup Unit (WKPU)
Access: User read/write (write 1 to clear)
EIF[14:4]
w1c
0 0 0 0
2017/2058
2023