IBM PPC440X5 - page 516

TSR
Timer Status Register
PPC440x5 CPU Core User’s Manual Preliminary
Page 516 of 589 regsumm440core.fm.
September 12, 2002
TSR
SPR 0x150 Supervisor Read/Clear
See Timer Status Register (TSR) on page 216.
Figure 10-48. Timer Status Register (TSR)
0 ENW
Enable Next Watchdog Timer Exception
0 Action on next Watchdog Timer exception is to set
TSR[ENW]= 1.
1 Action on next Watchdog Timer exception is governed
by TSR[WIS].
1 WIS Watchdog Timer Interrupt Status
0 Watchdog Timer exception has not occurred.
1 Watchdog Timer exception has occurred.
2:3 WRS
Watchdog Timer Reset Status
00 No Watchdog Timer reset has occurred.
01 Core reset was forced by Watchdog Timer.
10 Chip reset was forced by Watchdog Timer.
11 System reset was forced by Watchdog Timer.
4 DIS Decrementer Interrupt Status
0 Decrementer exception has not occurred.
1 Decrementer exception has occurred.
5 FIS Fixed Interval Timer (FIT) Interrupt Status
0 Fixed Interval Timer exception has not occurred.
1 Fixed Interval Timer exception has occurred.
6:31 Reserved
0123456 31
ENW
WIS
WRS FIS
DIS