19.4 Watchdog Timer Register Map

The following table summarizes the watchdog timer register interface. Detailed description of the registers is given in 19.4.1 Watchdog Timer Configuration Register Bit Definitions. The base address for the register details resides at 0x40005000 and extends to the address 0x40005FFF in the Cortex-M3 processor memory map.

Table 19-3. Watchdog Timer Register Interface Summary
Register Name Address Offset R/W Reset Source Description
Table 19-4 0x00 R WDOGLOAD Current value of the counter

This register is reset with the value in the WDOGLOAD system register.

Table 19-5 0x04 R WDOGLOAD Load value for the counter

This register is reset with the value in the WDOGLOAD system register.

Table 19-6 0x08 R WDOGMVRP Maximum value for which refreshing is permitted.

This register is reset with the value in the WDOGMVRP system register.

Table 19-7 0x0C W N/A Writing the value 0xAC15DE42 to this register causes the counter to be updated with the value in the WDOGLOAD register.
Table 19-8 0x10 R WDOGENABLE Watchdog timer enables register

This register is reset with the value in the WDOGENABLE bit in the WDOG_CR system register.

Table 19-9 0x14 R/W [31:3] and [1:0]=0X0 Control register

Bit 2 of this register is reset with the value of the WDOGMODE bit in the WDOG_CR system register.

Bit 2=WDOGMODE
Table 19-10 0x18 R 0X0 Status register
Table 19-11 0x1C R/W 0X0 Raw interrupt status