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QB-RL78F14 In-Circuit Emulator
4.1 Cautions Regarding Differences Between Target Device and Emulator
When debugging is performed by connecting the QB-RL78F14 to the target system, the QB-RL78F14 emulates the
target device as if it operates in the target system. However, the target device and the QB-RL78F14 operate differently
in the following ways. Consequently, the target device should be used for final evaluation before launching mass
production, and the customer is to be responsible for judging the appropriateness of applying the QB-RL78F14.
- On-chip debug function
The on-chip debug function cannot be emulated.
- Oscillator
The QB-RL78F14 does not support clock input by an oscillator in the target system. Consequently, the
operation clock frequency when the target device is mounted in the target system may differ from the operation
clock frequency when the QB-RL78F14 is connected.
- Pin characteristics
The pin characteristics of the QB-RL78F14 slightly differ when the target device is mounted to the target system,
because a connector, adapter, emulation probe, and circuit board exist between the QB-RL78F14 and the target
system. In particular, note that the A/D converter conversion results are commonly-affected.
- Current consumption
The current consumption of the QB-RL78F14 differs from that of the target device.
The maximum current consumption is around 200 mA. In the same manner, the current consumption in
standby mode also differs from that of the target device.
- A/D conversion error around 0[V] and 5.5[V]
A/D conversion error around 0[V] and 5.5[V] on QB-RL78F14 is large.
Use on-chip debugging or actual equipment for checking A/D conversion in 0.1[V] and under, or 5.36[V] and over.
R20UT2058EJ0300 Rev.3.00
Oct 31, 2013
CHAPTER 4
CAUTIONS
CHAPTER 4 CAUTIONS
Page 34 of 41
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