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QB-RL78G1C In-Circuit Emulator
4.1 Cautions Regarding Differences Between Target Device and Emulator
When debugging is performed by connecting the QB-RL78G1C to the target system, the QB-RL78G1C emulates the
target device as if it operates in the target system.
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-RL78G1C.
- On-chip debug function
The on-chip debug function cannot be emulated.
- Oscillator
The QB-RL78G1C 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-RL78G1C is connected.
- Pin characteristics
The pin characteristics of the QB-RL78G1C 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-RL78G1C 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-RL78G1C differs from that of the target device.
The maximum current consumption is around 150 mA. In the same manner, the current consumption in
standby mode also differs from that of the target device.
- Pull-up function of P17, P30, P50
Pull-up function of the below pins cannot be used on QB-RL78G1C.
Target pins : P17, P30, P51
- A/D conversion error around 0[V] and 5.5[V]
A/D conversion error around 0[V] and 5.5[V] on QB-RL78G1C is big.
Use on-chip debugging or actual equipment for checking A/D conversion in 0.1[V] and under, or 5.36[V] and over.
R20UT2079EJ0100 Rev.1.00
2013.07.12
CHAPTER 4
However, the target device and the QB-RL78G1C operate
CAUTIONS
CHAPTER 4 CAUTIONS
Page 37 of 45
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