20-101-1255 Rabbit Semiconductor, 20-101-1255 Datasheet - Page 89

• Manufacturer Part Number: 20-101-1255
• Description: COMPUTER SINGLE-BOARD BL4S100
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-1255

• Module/board Type: Single Board Computer Module
• Product: Modules
• Processor Type: BL4S100
• Sram: 512 KB
• Timers: 8 bit, 10 bit
• Number Of I/os: 20
• Backup Battery: 3 V Lithium Coin Type
• Operating Voltage: 9 V to 36 V
• Power Consumption: 2 W
• Board Size: 96 mm x 146 mm x 16 mm
• Description/function: Computer Module
• For Use With/related Products: BL4S100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1168

FUNCTION DESCRIPTION
PARAMETERS
BL4S100 User’s Manual
float anaInDiff(int channel, int gaincode);
Gain Code
Reads the state of a differential A/D converter input channel and uses the previously set
calibration constants to convert it to volts. Voltage ranges given in the table below are
the nominal ranges that will be returned. However, values outside these ranges can of-
ten be seen before the return of a
If the gain code for a given channel has changed from the previous cycle, the user block
will be read to get the calibration constants for the new gain value.
channel
gaincode
0
1
2
3
4
5
6
7
GAIN_X10
GAIN_X16
GAIN_X20
GAIN_X1
GAIN_X2
GAIN_X4
GAIN_X5
GAIN_X8
Macro
the analog input channel number (0, 2, 4, 6) as shown below
the gain code of 0 to 7
channel
0
2
4
6
anaInDiff
BL_OVERFLOW
Actual Gain
×10
×16
×20
×1
×2
×4
×5
×8
Differential Inputs
+AIN0 -AIN1
+AIN2 -AIN3
+AIN4 -AIN5
+AIN6 -AIN7
error.
Voltage Range
Differential
± 1.25 V
± 2.5 V
± 20 V
± 10 V
± 5 V
± 4 V
± 2 V
± 1 V
Voltage Range
0–1.25 V
0–2.5 V
Actual
0–20 V
0–10 V
0–5 V
0–4 V
0–2 V
0–1 V
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