Publication No. PPC11A-HRM/1
Control and Status Registers 109
5.51.5 Watchdog Kick Register (Offset 0x704)
Any write to this register kicks the Watchdog.
5.51.6 Watchdog Interrupt Acknowledge Register (Offset 0x705)
Any write to this register acknowledges the Watchdog warning interrupt.
5.51.7 Watchdog Main Counter Low Byte Register (Offset 0x706)
This register returns the value of the low byte of the main counter, and latches the
current value of the high byte for reading later.
5.51.8
Watchdog Main Counter High Byte Register (Offset 0x707)
This register returns the value of the high byte of the main counter at the instant
when the main counter low byte register was last read.
NOTE
Software must read the low byte and then the high byte in that order.
5.51.9 Watchdog Warning Timer Bits 8:1 Register (Offset 0x708)
This register returns the value of bits 8:1 of the 17-bit warning timer, and latches the
current value of bits 16:9 for reading later.
Bit 0 of the 17-bit warning timer cannot be read.
5.51.10
Watchdog Warning Timer Bits 16:9 Register (Offset 0x709)
This register returns the value of bits 16:9 of the 17-bit warning timer at the instant
when the warning timer low byte register was last read.
NOTE
Software must read the low register and then the high register in that order.
The Warning Timer Status bit in the
timer is running.
NOTE
The warning timer is a down counter. It may be treated as a 16-bit timer counting at half the rate of the
main counter.
Содержание PPC11A
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