Rabbit 6000 User’s Manual
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246
ADC Command/Status Register
(ADCCSR)
(Address = 0x0543)
Bit(s)
Value
Description
7
0
Normal processor-controlled conversions.
1
Continuous conversions for each channel sequentially.
6:4
000
Select A/D Converter Channel 0 for conversion.
001
Select A/D Converter Channel 1 for conversion.
010
Select A/D Converter Channel 2 for conversion.
011
Select A/D Converter Channel 3 for conversion.
100
Select A/D Converter Channel 4 for conversion.
101
Select A/D Converter Channel 5 for conversion.
110
Select A/D Converter Channel 6 for conversion.
111
Select A/D Converter Channel 7 for conversion.
3:2
00
Floating reference.
01
Internal reference (0.1VDDA – 0.9VDDA).
10
External reference (REF+ and REF- pins).
11
Internal reference (rail-to-rail).
1
This bit is reserved and should be written as zero. Reads always return
zero.
0
0
No conversion start. This bit always returns zero during read.
1
Start conversion command, using the accompanying channel selection.
This command is ignored while in the continuous conversion mode. This
command can by issued while another conversion is running for
maximum throughput.
Содержание 6000
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Страница 234: ...Rabbit 6000 User s Manual digi com 234 Figure 22 3 Sample Slow A D Converter Circuit...
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Страница 420: ...Rabbit 6000 User s Manual digi com 420 Figure 37 1 Memory Read and Write Cycles...