C-DIAS ANALOG INPUT MODULE
CAI 042
Instruction Register - CMDR
Bit
7 6 5 4 3 2 1 0
CMDR CMDR[7..0]
R/W
R/W R/W R/W R/W R/W R/W R/W R/W
Initial
Value
0 0 0 0 0 0 0 0
Instruction register for controlling the module.
The module is set to 0 after this instruction is executed.
Table of instructions
Value
Instruction
0x01 Normal
operation
(Skip warm-up phase)
0x02
Assume and save configurations
Global Configurations Register – CFG
Bit 7
6
5
4
3
2
1
0
CFG
CHAN1
CHAN0
R/W R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Global Configuration of CAI042
•
BIT1 – CHAN1
Channel configuration bit
•
BIT0 – CHAN0
Channel configuration bit
With the CHAN1:CHAN0 bits, it is possible to select 1, 2 and 4-channel operation. The
conversion time changes according to the settings.
CHAN1
CHAN0
Number of channels (active
channels)
Conversion time for all channels
0
0
1 (connector X1)
4ms
0
1
2 (connector X1 & X2)
8ms
1
0
4 (connector X1, X2, X3 & X4)
14ms
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