136 AMCC Proprietary
Revision 1.01 - February 19, 2007
PPC405 Processor
Preliminary User’s Manual
Figure 7-7. Timer Control Register (TCR)
0:1 WP
Watchdog Period
00 2
17
clocks
01 2
21
clocks
10 2
25
clocks
11 2
29
clocks
2:3 WRC
Watchdog Reset Control
00 No Watchdog reset will occur.
01 Core reset will be forced by the Watchdog.
10 Chip reset will be forced by the Watchdog.
11 System reset will be forced by the Watchdog.
TCR[WRC] resets to 00.
This field can be set by software, but cannot be
cleared by software, except by a software-induced
reset.
4WIE
Watchdog Interrupt Enable
0 Disable watchdog interrupt.
1 Enable watchdog interrupt.
5PIE
PIT Interrupt Enable
0 Disable PIT interrupt.
1 Enable PIT interrupt.
6:7 FP
FIT Period
00 2
9
clocks
01 2
13
clocks
10 2
17
clocks
11 2
21
clocks
8FIE
FIT Interrupt Enable
0 Disable FIT interrupt.
1 Enable FIT interrupt.
9ARE
Auto Reload Enable
0 Disable auto reload.
1 Enable auto reload.
Disables on reset.
10:31
Reserved