Rabbit 6000 User’s Manual
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29
Global Clock Modulator 0 Register
(GCM0R)
(Address = 0x000A)
Bit(s)
Value
Description
7:6
00
Clock dither in 1 ns steps, from 0 ns to 26 ns. Do not modify while the
dither function is enabled.
01
Clock dither in 0.5 ns steps, from 0 ns to 13 ns.
10
Clock dither in 2 ns steps, from 0 ns to 52 ns.
11
This bit combination is reserved and must not be used.
5:4
These bits are reserved and should be written with zeros.
4:0
System PLL loop divider value. All zeros is not a valid value for the PLL
loop divider. The PLL output frequency is the input frequency divided by
the value of the PLL pre-divider, and multiplied by the value of the PLL
loop divider. Neither divider value should not be modified while the PLL
is supplying the clock to the system.
Global Clock Modulator 1 Register
(GCM1R)
(Address = 0x000B)
Bit(s)
Value
Description
7
0
Disable the clock dither function. The disable does not take effect until
the dither pattern has returned to the 0 ns base delay value.
1
Enable the clock dither function.
6:5
These bits are reserved and should be written with zeros.
3:0
System PLL pre-divider value. All zeros is not a valid value for the PLL
pre-divider. Neither divider value should not be modified while the PLL
is supplying the clock to the system.
Summary of Contents for 6000
Page 1: ...Rabbit 6000 Microprocessor User s Manual 90001108_J...
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 186: ...Rabbit 6000 User s Manual digi com 186 19 1 1 Block Diagram...
Page 230: ...Rabbit 6000 User s Manual digi com 230 22 2 Block Diagram...
Page 234: ...Rabbit 6000 User s Manual digi com 234 Figure 22 3 Sample Slow A D Converter Circuit...
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Page 351: ...Rabbit 6000 User s Manual digi com 351 31 1 4 Block Diagram...
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Page 420: ...Rabbit 6000 User s Manual digi com 420 Figure 37 1 Memory Read and Write Cycles...