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Rabbit 6000 User’s Manual
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50
Watchdog Timer Control Register
(WDTCR)
(Address = 0x0008)
Bit(s)
Value
Description
7:0
0x5A
Restart the watchdog timer with a 2-second timeout period.
0x57
Restart the watchdog timer with a 1-second timeout period.
0x59
Restart the watchdog timer with a 500 ms timeout period.
0x53
Restart the watchdog timer with a 250 ms timeout period.
0x5F
Restart the secondary watchdog timer.
other
No effect on watchdog timer or secondary watchdog timer.
read
Return the least-significant 8bits of the CPU clock cycle counter.
Watchdog Timer Test Register
(WDTTR)
(Address = 0x0009)
Bit(s)
Value
Description
7:0
0x51
Clock the least significant byte of the watchdog timer from the peripheral
clock.
0x52
Clock the most significant byte of the watchdog timer from the peripheral
clock.
0x53
Clock both bytes of the watchdog timer, in parallel, from the peripheral
clock.
0x54
Disable the watchdog timer. This value, by itself, does not disable the
watchdog timer. Only a sequence of two writes, where the first write is
0x51, 0x52, or 0x53, followed by a write of 0x54, actually disables the
watchdog timer. The watchdog timer will be re-enabled by any other
write to this register.
other
Normal clocking (32 kHz clock) for the watchdog timer.
5:0
read
Return the most-significant 6 bits of the CPU clock cycle counter.
Summary of Contents for 6000
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Page 11: ...Rabbit 6000 User s Manual digi com 11 1 3 Block Diagram Figure 1 1 Rabbit 6000 Block Diagram...
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Page 234: ...Rabbit 6000 User s Manual digi com 234 Figure 22 3 Sample Slow A D Converter Circuit...
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Page 420: ...Rabbit 6000 User s Manual digi com 420 Figure 37 1 Memory Read and Write Cycles...