20-101-1256 Rabbit Semiconductor, 20-101-1256 Datasheet - Page 21

• 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

3.2 Digital I/O
3.2.1 Digital Inputs
The BL4S100 has 12 digital inputs, IN0–IN11, each of which is protected over a range of
–36 V to +36 V. The inputs are factory-configured to be pulled up to +5 V, but they can
also be pulled up to +K or pulled down to 0 V by changing a jumper as shown in Figure 6.
Table 2 summarizes the jumper settings.
BL4S100 User’s Manual
Figure 6. BL4S100 Digital Inputs IN0–IN11 [Pulled Up to +5 V—Factory Default]
Table 2. BL4S100 Digital Input Pull-Up/Pull-Down Jumper Settings
CAUTION: Do not simultaneously jumper more than one setting when configuring
the pull-up or pull-down options.
Pins Jumpered
2–4 or 4–6
1–2
5–6
W
Inputs pulled down to GND
Pulled Up/Pulled Down
Inputs pulled up to +5 V
W
Inputs pulled up to +K
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