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The Logic Analyzer software that runs on your PC and controls
the USBee ZX Digital Test Pod is a powerful addition
to any design and debugging development.

The PC based Logic Analyzer software provides
the following functions:
- Tiny USBee Pod (2" x 1.5"
x 0.5") connects to your hardware
- Logic Analyzer software runs
on your PC
- USB 2.0 High-Speed connects the pod to your
PC
- Sample Rates (1Msps up to 24Msps)
- max rate dependent on your PC
- 8 channels
- Sample Depth of 1 million samples
up to available PC memory
- Sample Clock Output or Input
- 4 configurable Trigger states
using any of the 8 signals
- Waveform display (above)
- Listing display
- I2C, Async, SPI Bus Decoder
- Save, Open and Print captured
data and settings
- Movable cursors for easy measurements
- Output files can be loading into
Signal Generator to "playback" the capture
The USBee ZX Digital Test Pod does not need an external power
supply. The USB bus supplies the power to the pod, so your
PC will be supplying the power. The Pod does, however, require
a self powered hub (not bus powered) if a hub is used
between the PC and Pod.
The USBee ZX Pod Logic Analyzer
software must be connected
to a USB 2.0 High Speed port to work. It will
not function using a USB 1.1 Full Speed port.
The Bus Decoders analyze any of
the USBee signals for I2C, Async or SPI bus activity and creates a
listing containing all Start, Stop, command,
data and ACK positioning.
The Async Serial Decoder analyzes any of
the USBee signals for asynchronous serial activity and creates a
listing containing all data found in ASCII, Hex or
both. The baud rates can be entered to 1 baud resolution.
You can also select 8 data bits No parity or 7 data
bits 1 parity bit. You can choose lsbit first or msbit
first as well.
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Specifications
for the USBee ZX running the USBee ZX Logic Analyzer
Module
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Maximum Sample Rate |
24 Msps (*) |
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Number of Channels |
8 |
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Internal Clocking |
Yes |
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External Clocking |
Yes |
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Trigger Levels |
4 |
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Trigger Qualifiers |
Any Signall Rising
Edge Falling Edge High Low |
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Number of Samples |
1 million up to available PC memory |
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Available Sample Rates |
24Msps (*) 16Msps 12Msps 8Msps 6Msps 4Msps 3Msps 2Msps 1Msps
plus external
CLK up to 16MHz
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Trigger Prestore |
10% to 90% |
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Trigger Poststore |
90% to 10% |
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Sample Clock Output |
Yes |
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Sample Clock Input |
Yes |
(*) Maximum sample rate
depends on your PC hardware CPU speed and USB 2.0 bus
utilization. For the fastest possible sample rates,
follow these simple steps:
- disconnect all other
USB devices not needed from the PC
- Do not run other
applications while capturing or generating samples.
- Use a USB2.0 High
Speed enabled port
See the table below for
actual sample rates and sample buffer depths on various
PC systems for this Logic Analyzer function on the USBee
ZX.
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PC System
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Sample
Rate
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Maximum
Buffer Depth
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HPDesktop,
2.53GHz P4, 512MB RAM, Internal USB 2.0, WinXP
Home
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24Msps
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258 million
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HPDesktop,
2.53GHz P4, 1GB RAM, Internal USB 2.0, WinXP
Home
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24Msps
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749 million
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Compaq notebook,
847MHz Mobile AMD Duron processor, 192MB
RAM, USB 2.0 Cardbus port, WinXP Pro
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8Msps
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54 million
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NEC Desktop, 450MHz Pentium
III, 128MB RAM, Adaptec PCI-USB2.0
card, Win2000 Pro
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8Msps
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18 million
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