Watchdog Timer Register; Watchdog Timer Interrupt Clear Register; Watchdog Enable And Watchdog Reset Enable Register - Motorola IXP-9120 Reference Manual

Maps and Registers

Watchdog Timer Register

Address: C600 0090
Type: Write Only
This register must be accessed periodically (refreshed). Failure to access this register results in
an interrupt. Failure to refresh this register after an interrupt has been issued will result in a
reset of the entire system. Refresh periodicity should be within a second.
Table 24: Watchdog Timer Register
Bit
0

Watchdog Timer Interrupt Clear Register

Address: C600 00A0
Type: Write Only
This register provides a means of clearing the Watchdog interrupt.
Table 25: Watchdog Timer Interrupt Clear Register
Bit
0

Watchdog Enable and Watchdog Reset Enable Register

Address: C600 00B0
Type: Read/Write
This register provides a means to enable or disable the watchdog timer as well as to enable or
disable the watchdog interrupt to reset the board.
Table 26: Watchdog Enable and Watchdog Reset Enable Register
Bit
0
1
IXP/CPCI-9120
Description
0,1: Access (read or write) to this register refreshes the Watch Dog Timer
Description
0,1: Access to this register clears the Watch Dog Timer Interrupt
Reset value: 1
Description
0: Enable watchdog Timer
1: Disable watchdog Timer
Reset Value: 1
0: Enable watchdog timer Reset
1: Disable watchdog timer Reset
Reset Value: 1
Register Details
Access
RW
RW
Access
W
Access
WO
107