Artesyn MVME2502 Installation and Use (April 2015) - Manual (Page 130)

Memory Maps and Registers
MVME2502 Installation and Use (6806800R96E) 130
5.5.21 PLD Watchdog Timer Count Value Register
The MVME2502 provides a watchdog timer count value register.
5.6 External Timer Registers
The MVME2502 provides a set of tick timer registers to access the three external timers
implemented in the timers/registers PLD. These registers are 32-bit and are word writable. The
following sections describe the timer prescaler and control register:
5.6.1 Prescaler Register
The prescaler adjust value is determined by this formula:
Field Description
Count Count. These bits define the watchdog timer count value. When the
watchdog counter is enabled, it will count up from zero (reset value) with a 1
ms resolution until it reaches the COUNT value set by this register. Watchdog
will generate a soft reset signal if it bites.
Setting this register to 0xEA60 or 60,000 counts will provide a watchdog
timeout of 60 seconds.
Table 5-24 PLD Watchdog Timer Count Register
REG PLD Watchdog Timer Count Value- 0xffc80608
Bit 15:0
Field Count Value
OPER R
RESET 0x0000
Field Description
Count
Value Count value. These bits indicate the current value of the watch dog counter.