Oki Dr.63514, User Manual, Page: 21 / 101

Chapter 1. Overview
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12. Error LED (ERROR)
This red LED lights when a problem within the emulator prevents normal operation from proceeding.
It also may flash during emulator initialization.
13. Voltage check LED (VCHECK)
This red LED lights when VDD, positive power supply voltage, falls below 0.7V.
14. Halt mode LED (HALT)
This orange LED lights when the evaluation chip is in halt mode.
15. Positive power supply voltage switch (VDD.SEL)
This switches VDD, the positive power supply voltage, between internal and external sources.
16. Evaluation/emulation switch (MODE)
This switches emulator operation between evaluation and emulation.
17. Low-speed clock switch (XT.SEL)
This switches the low-speed (XT) clock between internal and external sources.
18. High-speed OSC clock switch (OSC.SEL)
This switches the high-speed (OSC) clock between internal and external sources.
19 EPROM sockets (EPROM.HIGH and EPROM.LOW)
These accept EPROMs containing the user application program.
20. User cable connector (USR)
This connects to the user cable provided.
21. Probe connector (PROBE)
This connects to the probe cable provided.