SPI Option for ALD-232A
Model # ALD-232A/SPI
Dual column display of the data in each direction
All commonly used SPI parameters can be easily set
Clock speeds to 8MHz
Simultaneous state and timing displays
1-32 bits/word
Support for Agilent 1680/90/90x analyzers
May be used with or without chip select
Save measurement setup time with automatic configuration software for the logic analyzer
Does not require termination adapters
Includes all of the features of the ALD-232A Analysis Probe (RS232, RS449, and IEEE1284)

Introduction

This solution provides a simple, easy to use, tool for examining SPI transactions.  A very flexible setup allows all commonly used combinations of SPI parameters to be easily entered by the user.  The logic analyzer display presents two columns of data, one for each direction of flow.  Since the data is presented to the logic analyzer as bytes, all of the unique triggering qualities of the analyzer can be utilized.

Simultaneous viewing of the timing in both data directions is also presented.  The timing waveform also displays a clock counter to enable easy interpretation of the data bits.

Input noise is reduced by sampling the data and requiring that two successive samples be the same before a signal transition is recognized.
Specifications
Input Voltage:  low -0.5V to .08V, high 1.7V to 5.0V
Clock:  0 to 8MHz, Positive or Negative edge, Free running or block mode
Input Signals:  CLK, MOSI, MISO, CS, GND
Chip Select (CS) Polarity: active High, Low or not used (block mode clocking)
Data Polarity: active High or Low
Bits Per Word:  1 to 32
Bit Order: LSB or MSB first
Noise Suppression:  Two successive data samples must be the same
Sampling Rate:  32MHz
Connection:  Five .025" female square posts
Data Width to Analyzer:  8 bits (sequentially at 32MHz)
Power Required:  ~325 mA supplied by the logic analyzer
Mechanical:  4.0" x 7.5" x 2.0"
Included
User Guide
Diskette containing configuration files and inverse assembler
Cable for connecting to the SPI target bus
Agilent Logic Analyzers Supported

The ALD-SPI bus analysis probe may be used with all currently available 1680, 1690 and 16900 logic analyzer systems. Two 17-channel pods are required.


Detailed display of SPI State listing


Detailed display of SPI timing waveform window
Not Included
Agilent Logic Analyzer
Manual

Download ALD-232A/SPI 1680/90/900 manual
Configuration Files
Download ALD-232A/I2C  1680/90/900 install files
Model Number
ALD-232A/SPI
Purchasing Information
Advanced Logical Design, Inc. reserves the right to make changes in the specification or design at any time without notice.