NXP Semiconductors QorIQ LS1028A Reference Manual page 81

4.22 Watchdog (WATCH)
4.22.1 Address
Register
WATCH 01Fh
4.22.2 Function
The WATCH register selects the watchdog timer value used during the reconfiguration
processes. When RCFG[WDEN] enables the watchdog timer, a count down timer begins.
If the DUT software does not disable or restart the watchdog timer within the specified
limits, the system restarts.
Note that the watchdog timer is not dependent upon a reconfiguration sequence being
active. While it is typically enabled along with RCFG[GO] as part of a reconfiguration
sequence; in fact, it is independent and can be enabled for any reason.
4.22.3 Diagram
Bits 7
R
W
CRST
4.22.4 Fields
Field
7-0 Watchdog timer value, as determined by the formula:
WATCH
time-out = [ WATCH * (2.0sec) ] + 2.0sec
Examples:
11111111=
00111111=
00001111=
QorIQ LS1028A Reference Design Board Reference Manual, Rev. A, 02/2018
NXP Semiconductors
6 5 4
8 min
2 min
32 sec
Confidential Proprietary
Chapter 4 Qixis Programming Model
Offset
3 2
WATCH
00011111
Function
1 0
81