101-0898 Rabbit Semiconductor, 101-0898 Datasheet - Page 100

• Manufacturer Part Number: 101-0898
• Description: KIT WEB SECURE EMBEDDED RCM3700
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 3000r

Specifications of 101-0898

• Main Purpose: Interface, Ethernet
• Utilized Ic / Part: RCM3700
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Secondary Attributes: -
• Embedded: -
• Primary Attributes: -
• Other names: 101-898; 101-898

B.1.5 Analog Features
The RCM3700 Prototyping Board has an onboard ADS7870 A/D converter to demon-
strate the interface capabilities of the Rabbit 3000. The A/D converter multiplexes con-
verted signals from eight single-ended or three differential inputs to alternate Serial Port B
on the Rabbit 3000 (Parallel Port pins PD4 and PD5).
B.1.5.1 A/D Converter Inputs
Figure B-5 shows a pair of A/D converter input circuits. The resistors form an approxi-
mately 10:1 attenuator, and the capacitor filters noise pulses from the A/D converter input.
The A/D converter chip can make either single-ended or differential measurements
depending on the value of the
A/D converter inputs can be paired to make differential measurements. The default setup
on the Prototyping Board is to measure only positive voltages for the ranges listed in
Table B-2.
RabbitCore RCM3700 User’s Manual
Figure B-5. A/D Converter Inputs
opmode
W
W
parameter in the software function call. Adjacent
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