Renesas Single-Chip Microcomputer M38C89T-ADF Manual de usuario descargar pdf (Pagina 17)

M38000T2-CPE User’s Manual 1. Outline

R20UT0213EJ0600 Rev.6.00 Page 17 of 82

Oct. 20, 2010

(3) System Reset Switch

By pressing the system reset switch, you can initialize the emulator system.

Table 1.4 shows the functions of the system reset switch depending on the state of the emulator.

Table 1.4 Functions of the system reset switch

State of Emulator Function

When the user’s program is being stopped

Initializes the emulator and waits for a command

from the emulator debugger.

When the user’s program is being executed

Stops the user’s program, initializes the emulator, and

waits for a command from the emulator debugger.

(4) LED for Checking the Connections of the Target Status Cables

The LED (LED7) for checking the connections of the target status cables lights only when the Vcc and GND of target status

cables are connected properly. When this LED does not light after turning on the emulator and user system, turn off the power

immediately and check the connections of the target status cables.

However, even under normal operating conditions, when the power supply voltage is less than 3.3 V, the GOOD LED will dim

or will not turn on.

Table 1.5 Definitions of the target status LEDs

Name Number Color Status Meaning

VCC and GND of the target status cable are connected properly.

GOOD LED7 Green

OFF

VCC and GND of the target status cable are not connected

properly or power is not supplied.

IMPORTANT

Notes on a System Reset:

• After pressing the system reset switch, restart the emulator debugger. Otherwise the display of emulator

debugger and the actual value (in the emulator) may not match.

• When the emulator debugger does not start up normally even after rebooting, turn off the emulator and then turn

on again.

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Renesas Single-Chip Microcomputer M38C89T-ADF Manual de usuario Pagina 17