Renesas QB-RL78D1A2, Руководство пользователя

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QB-RL78D1A2 In-Circuit Emulator CHAPTER 4 CAUTIONS
R20UT3110EJ0101 Rev.1.01 Page 31 of 41
Nov 28, 2014
CHAPTER 4 CAUTIONS
4.1 Cautions Regarding Differences Between Target Device and QB-RL78D1A2
When debugging is performed by connecting the QB-RL78D1A2 to the target system, the QB-RL78D1A2 emulates the
target device as if it operates in the target system. However, the target device and the QB-RL78D1A2 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-RL78D1A2.
- On-chip debug function
The on-chip debug function cannot be emulated.
- Oscillator
The QB-RL78D1A2 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-RL78D1A2 is connected.
- Pin characteristics
The pin characteristics of the QB-RL78D1A2 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-RL78D1A2 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-RL78D1A2 differs from that of the target device.
The maximum current consumption is around 55 mA. In the same manner, the current consumption in standby
mode also differs from that of the target device.