Fujitsu MB2147-01 External Trigger Input Terminal Specifications, Precautions on use, Break slip

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1.7 External Trigger Input Terminal Specifications

1.7External Trigger Input Terminal Specifications

The emulator has a TRIG terminal for input of external trigger signals.

■External trigger input terminal specifications

External trigger input is a function (external trigger break function) that is used to input a break signal from external test equipment, such as a logic analyzer connected to the emulator, to the evaluation MCU on the emulator.

Table 1.7-1"External trigger input terminal specifications" lists the external trigger input terminal specifications, and Figure 1.7-1"Configuration of the peripheral circuit for the external trigger input terminal" shows the corresponding peripheral circuit configuration.

Table 1.7-1 External trigger input terminal specifications

Terminal name	Input or output	Description

TRIG	Input	Used to input external trigger signals.
		This terminal is used for break function control.
		The active signal triggered by a transition from level L
		to H or that by a transition from level H to L can be
		selected.
		A break occurs at detection of the selected active
		signal that is input.

Figure 1.7-1 Configuration of the peripheral circuit for the external trigger input terminal

74LVC244 (Vcc=3.3V)

To internal emulator circuit

TRIG terminal BNC connector

100 KΩ

GND GND GND

■Precautions on use

Before using the external trigger function, read the following explanation on break slip so that you understand its characteristics.

❍Break slip

A trigger signal input via the external trigger input terminal is encoded in the emulator internal circuit into the emulator interface command code. The signal is then transmitted to the evaluation MCU in the emulator system. The emulator interface has lower clock frequency than that the evaluation MCU (the ratio of these clock frequencies depends on the evaluation MCU used). Therefore, a relatively large break slip (in a range of dozens to hundreds of machine clock pulses) occurs between trigger signal input and the associated break operation of the evaluation MCU.

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Contents MB2147-01 Page Fujitsu Limited Page Trademark Using the product safelyGuarantee and liability Objectives and intended readersPlug Safety precautionsNo disassembly Description Electric shockDescription Prohibition Description Plug 25, 26 Description Related manuals Organization of this ManualViii Contents Page Product Handling and Specifications Checking packed components Checking Packed ComponentsAppearance and Part Names Appearance and Part Names2 Front view of the emulator unit 1 General specifications General SpecificationsGeneral Specifications Emulator includes an RS-232C port RS-232C Port SpecificationsRS-232C port specifications 1 RS-232C port specifications DescriptionEmulator includes a USB port USB Port SpecificationsUSB Port Specifications 1 USB port specifications DescriptionEmulator includes a LAN port LAN Port SpecificationsLAN port specifications 1 LAN port specifications DescriptionBreak slip External Trigger Input Terminal SpecificationsExternal Trigger Input Terminal Specifications Precautions on useProgram execution output terminal specifications Program Execution Output Terminal SpecificationsOperational flow Power-On Debug SpecificationsPower-On Debug Specifications Operation outline Operation timing Detection of power-offDetection of power-on 10-1 Options Name Model name OptionsOptions RXD Precautions about possible problems Plug Precautions about Possible ProblemsPrecautions about Possible Problems Precautions on handling the product Electric shock Precautions on Handling the ProductPrecautions on Handling the Product Prohibition Product Handling and Specifications Precautions on use Prohibition Precautions on UseProhibition problems Precautions on storageConnecting the Emulator System configuration System ConfigurationConnecting an Adapter Board Connecting an Adapter BoardConnect a probe to the user system Connecting the User SystemConnecting the user system 1 Probe configurations Cable used Connection to user system1 Connecting using a probe cable to the user system Probe CN1 B1 Probe CN B2 3 Connecting using flat cables to the user system Connect a probe to the adapter board Connecting a ProbeConnecting a probe Note Connecting a probe using a probe cable2 Connecting a probe using flat cables Connecting a Probe Connecting a probe using flat cablesConnecting a host machine Connecting a Host MachineConnecting Test Equipment Connecting Test EquipmentConnecting the AC adapter Connecting the AC AdapterOperating the Emulator Mounting an evaluation MCU Mounting an Evaluation MCUMount an evaluation MCU on the emulator Clock Supply Clock SupplyThis section explains clock supply to the evaluation MCU 2 Configuration of peripheral circuits for the clock circuit FC SEL Settings for subclock selectionSwitching of the emulator-dedicated power supply Emulator-dedicated Power Supply SwitchingPage Switching of the user port power supply User Port Power Supply SwitchingSelect a user port power supply for the evaluation MCU 1 Settings of the C-pin selection switch Pin FC SEL setting Switching the C Pin SettingSwitching the C Pin Setting Switching the C-pin settingSwitching of the user data bus User Data Bus SwitchingSet the setting of the user data bus selection switch User Data Bus Switching Functions of the setting switches Using the Setting SwitchesUsing switches for selection or confirmation 1 Menu configuration Display configurationPower-on sequence Prohibition Power-On SequencePower-On Sequence 1 Power-on sequence Power-off sequence Prohibition Power-Off SequencePower-Off Sequence Operating the Emulator Fujitsu Semiconductor Controller Manual