UM0034 datasheet(22/39 Pages) STMICROELECTRONICS

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Emulation configuration

ST7-EMU3 series emulator

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4.4.3

Analyzer input connector

An analyzer input connector is located on the EMU3 probe as shown in Figure 21. The

analyzer input connector allows you to use 8 external input signals (TTL level). The

connector has nine pins—one ground pin (the right-most pin) and eight input signal pins (1-

8), as shown in Figure 22.

Figure 22.

Analyzer probe input connections

A specially-adapted 9-wire cable is included to connect your application or an external

device (such as an oscilloscope or multi-meter) to these inlets. Each wire is color-coded as

summarized in Table 2:

4.4.4

Application power supply follower

Your emulator is equipped with an automatic power supply follower, which converts your

application power to the range supported by the emulator. The emulator’s internal power

supply regulator supports a VDD voltage up to 5.5 V. The lower limit of the range depends on

the ST7 you are emulating. For more information, refer to your ST7xxxx Datasheet.

If your application’s voltage lies outside of the range supported by your emulator or your

ST7, the emulator’s power supply follower will convert the voltage to within the appropriate

range – for example, even if the application voltage is 6 V, it will be limited by the emulator to

5.5 V.

Table 2.

Analyzer input pin-wire correspondence

Analyzer input pin

Wire color

Ground (GND)

Black

1Brown

2Red

Orange

Yellow

Green

6Blue

7Purple

8Grey

8 7 6 5 4 3 2 1 GND

1 ground pin (GND) and 8 male input pins (1-8)

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