20-101-1258 Rabbit Semiconductor, 20-101-1258 Datasheet - Page 26

• Manufacturer Part Number: 20-101-1258
• Description: COMPUTER SINGLE-BOARD BL4S160
• Manufacturer: Rabbit Semiconductor

Specifications of 20-101-1258

• Module/board Type: Single Board Computer Module
• Product: Modules
• Processor Type: Rabbit 4000
• Sram: 1 MB
• Flash: 2 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: BL4S160
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1171

3.2.2.1 PWM/PPM Outputs Setup
PWM and PPM outputs on the BL4S100 are configured using the
setPPM()
BL4S100 User’s Manual
A PWM output is described as noninverted
when it starts high, remains high for a duty
cycle that is a fraction of the period, then
goes low for the remainder of the period.
Similarly, an inverted PWM output starts
low, remains low for a duty cycle that is a
fraction of the period, then goes high for
the remainder of the period.
A PWM output is normally set up to start
when triggered by an event, and may be
set up so that the leading and trailing edges
of several PWM outputs are aligned as
long as the all the PWM outputs are on the
same block of a particular Rabbit RIO
chip.
A PPM ouput is similar to a PWM output,
except it is shifted by an offset relative to
the event that triggered the start of the
PPM output.
A PPM output is either inverted or nonin-
verted, based on whether it starts high or
low, and may be set up so that their lead-
ing and trailing edges of several PPM out-
puts are aligned as long as the all the PPM
outputs are on the same block of a particu-
lar Rabbit RIO chip
function calls.
setPWM()
and
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