OP-SB5GL TTL/I2C/SPI* Expansion Kit

Applicable Analyzers: LE-3500/LE-2500
* SPI communications is only supported by LE-3500 (V1.03 or later).

Outline

OP-SB5GL is the interface expansion kit that has a port to measure RS-232C(V.24) and a port to measure the TTL / CMOS signal level communications. The port for TTL / CMOS supports the measurement of TTL / CMOS level communications that power supply system is from 1.8V to 5V. It is suitable for monitoring the communications between the LSI and the interface IC on the printed circuit board by directly probing into the lines. It supports the protocol of not only UART and HDLC but also I²C and SPI(*) on monitoring and simulating.
Furthermore, it has BURST measuring mode that captures data at all clock edges.

* SPI communications is only supported by LE-3500 (V1.03 or later).

<Quality Test Clip>

Operating Instructions

After inserting the expansion board into an analyzer (LE-3500/LE-2500), connect the communication lines to measure, using the probe pod. Since 9 kinds of  signal lines can be tested, you can measure various communications: SD, RD, RS, CS, SD_CLK, RD_CLK, external input, trigger input and trigger output. Moreover, you can set the polarity of data and the clock you wish to capture.

Monitoring

In the normal mode (USART), you can make full use of the functions of an analyzer such as the trigger function. Also, by setting the BURST mode on the analyzer, you can measure communication system (clock synchronous communication) which supplies the clock at the time of only transmitting data. That makes it possible to monitor communication that the old protocol analyzers cannot measure. In addition, by setting the I²C mode, you can test the I²C serial communications including the start sequence and stop sequence. Since the translation display is available in I²C, you can efficiently analyze the sequences of Read and Write.

<I2C Measuring Result Screen>

<I2C Translation Screen>

By using LE-3500, it can monitor SPI communications, which is widely used in transferring communications

<SPI Measuring Result Screen>

<SPI Frame Display Screen>

Logic Analyzer

By using the logic analyzer function, you can check the data logic and the timing of capturing the clock in the waveform. Especially, the serial interface between LSI often can be a problem regarding the phase difference and the delay of the clock and data. In this case, the logic analyzer function enables you to analyze by bit timing.

Simulation / Bert

Excepting the BURST mode, using the simulation function enables you to enhance the efficiency of product development and the troubleshooting. In the I2C and SPI mode, you can simulate in both the master and the slave. Also, since the bit error rate test (BERT) is available in the normal mode (USART), you can easily test the transmission feature of the device, etc.

Specification

Analyzer	LE-2500, LE-3500
Interface	RS-232C, TTL / CMOS (for I2C and SPI*2)
Probe Signal	SD (SDA/SDO) , RD (SDI) , RS (SS) , CS , EX IN , SD CLK (SCL/SCK) , RD CLK , Trigger IN , Trigger OUT (Length of lead:170mm)
Protocol	ASYNC, ASYNC-PPP, SYNC(BSC), HDLC(SDLC), BURST, I2C, SPI*1
Test function	Monitor / Simulation / BERT*2
Communication speed	ASYN, ASYNC-PPP, SYNC, BURST : 50bps - 2.048Mbps*3 HDLC : 50bps to 2.048Mbps*3 on standard, 115.2Kbps to 10Mbps*3 on using OPFW10G*4 SPI : 50bps to 2.048Mbps*5, 115.2Kbps to 10Mbps*5 on using OP-FW10G*6 I2C : max. 1Mbps (On simulation 50K, 100K, 200K, 384K, 417K, 1Mbps)
Signal level	Selectable from 5.0V/3.3V/2.5V/1.8V of power supply system
Input Impedance	100KΩ( 0V ≤ Vin ≤ 5V) ( Acceptable input range : -1V to +7V)
Input Level Threshold	Setting of 5.0V High: Min 3.5V Low: Max 1.5V Setting of 3.3V High: Min 2.0V Low: Max 0.8V Setting of 2.5V High: Min 1.7V Low: Max 0.7V Setting of 1.8V High: Min 1.2V Low: Max 0.6V
Output circuit	The followings are selectable*7: OC(Open collector)with the pull-up resister of 680Ω, OC(Open collector)without pull-up resister, Push-pull output of CMOS
Output Level Voltage	High level : Min Selectable signal level - 0.4V Low level : Max 0.5V*8
Size and Weight	Probe Pod body size : 78(W) × 92(D) × 22(H) Weight : about 100g Relay cable length : 800mm
Power	Supplied from the analyzer's body
Tenperature	Operation:0 to 40°C Strage:-10 to 50°C

(*1) Mode for sampling data at all clock edges.
(*2) I²C BERT testing not supported.
(*3) Set from analyzers.