20-101-1256 Rabbit Semiconductor, 20-101-1256 Datasheet - Page 23
20-101-1256
Manufacturer Part Number
20-101-1256
Description
COMPUTER SINGLE-BOARD BL4S110
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-101-1258.pdf
(144 pages)
Specifications of 20-101-1256
Module/board Type
Single Board Computer Module
Product
Modules
Processor Type
Rabbit 4000
Sram
512 KB
Flash
1 MB
Timers
8 bit, 10 bit
Number Of I/os
20
Backup Battery
3 V Lithium Coin Type
Operating Voltage
9 V to 36 V
Board Size
96 mm x 146 mm x 16 mm
Description/function
Computer Module
For Use With/related Products
BL4S110
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1169
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Keep the following guidelines in mind when selecting special uses for the digital input pins.
• Interrupts, event counters, and input capture are available on any digital input pin.
• Each Quadrature Decoder channel requires at least two digital input pins associated
Sample programs in the
use digital inputs for interrupts, pulse capture, and quadrature decoders.
3.2.1.1 Interrupt, Counter, and Event Capture Setup
External interrupts on the BL4S100 digital input pins are configured using the
tInterrupt()
ing edge, or either edge.
The counter readings can be obtained via the
BL4S100 User’s Manual
An input channel may be set up to count
events, with the count incrementing or
decrementing, using the rising edge, fall-
ing edge, or either edge as triggers to start/
end the count. This feature is configured
using the
A more extensive use of the timing abilities
of the BL4S100 inputs can be realized
through the event capture function call,
setCapture()
ticular clock cycle is noted at the start of the
event and at the end of the event so that the
time between them can be determined. This
can be set up on one or two input channels.
The event counter can be reset with the
resetCounter()
with the same counter/timer block; three digital input pins associated with the same
counter/timer block are needed if you need indexing. Quadrature Decoder channels are
configured using the
setCounter()
. Here the count of a par-
function call. The interrupt can be set up to occur on a rising edge, a fall-
function call.
setDecoder()
DIO
function call.
subdirectory in
function call.
SAMPLES\BL4S1xx
getBegin()
or
getEnd()
show how to set up and
function calls.
setEx-
21
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