19.4 Watchdog Timer Register Map

The following table summarizes the watchdog timer register interface. Detailed description of the registers is given in 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 NameAddress OffsetR/WReset SourceDescription
Table 19-40x00RWDOGLOADCurrent value of the counter

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

Table 19-50x04RWDOGLOADLoad value for the counter

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

Table 19-60x08RWDOGMVRPMaximum value for which refreshing is permitted.

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

Table 19-70x0CWN/AWriting the value 0xAC15DE42 to this register causes the counter to be updated with the value in the WDOGLOAD register.
Table 19-80x10RWDOGENABLEWatchdog timer enables register

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

Table 19-90x14R/W[31:3] and [1:0]=0X0Control 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 19-100x18R0X0Status register
Table 19-110x1CR/W0X0Raw interrupt status