20-101-1256 Rabbit Semiconductor, 20-101-1256 Datasheet - Page 22

• Manufacturer Part Number: 20-101-1256
• Description: COMPUTER SINGLE-BOARD BL4S110
• Manufacturer: Rabbit Semiconductor

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

Individual digital input channels may be also used for counters, synching, interrupts, input
capture, or as quadrature decoder inputs. The use of these channels for interrupts, input
capture, and as quadrature decoders is described below.
Blocks of digital input pins are associated with counters/timers on the Rabbit RIO chip.
Table 3 provides complete details for these associations.
Appendix D provides further details on the blocks and pins associated with the Rabbit
RIO chip to facilitate configuring each block consistently and to identify misconfigured
pins when a software function call returns a Mode Conflict error code.
BL4S100 User’s Manual
The actual switching threshold is approximately
1.40 V. Anything below this value is a logic 0,
and anything above 1.90 V is a logic 1. The
digital inputs are each fully protected over a
range of -36 V to +36 V, and can handle short
spikes of ±40 V.
NOTE: If the inputs are pulled up to +K, the
voltage range over which the digital inputs are
protected changes to +K – 36 V to +36 V.
Table 3. Counter/Timer Associations for BL4S100 Digital Input Pins
CAUTION: Do not allow the voltage on a digital input pin to exceed ±36 V to
avoid damaging the input.
Configurable I/O
IN0–IN2
IN3–IN5
IN6–IN7
IN8–IN9
Pin(s)
IN10
IN11
Counter/Timer
Blocks
0
1
2
3
6
7
Figure 7. BL4S100 Digital Input
XBee RF module
Block Shared
OUT0–OUT1
OUT2–OUT3
Protected Range
With
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