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QB-RL78I1A In-Circuit Emulator
4.1 Cautions Regarding Differences Between Target Device and Emulator
When debugging is performed by connecting the QB-RL78I1A to the target system, the QB-RL78I1A emulates the
target device as if it operates in the target system. However, the target device and the QB-RL78I1A 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-RL78I1A.
- On-chip debug function
The on-chip debug function cannot be emulated.
- Oscillator
The QB-RL78I1A 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-RL78I1A is connected.
- Pin characteristics
The pin characteristics of the QB-RL78I1A 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-RL78I1A 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-RL78I1A 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.
- Setting the reference voltage on the A/D converter to the internal reference voltage
When selecting the internal reference voltage (1.45V), after setting ADREFP1 =0 and ADREFP0 = 1, 1ms (device
required
is 1μs) is
- 3-wire serial (CSI)
A communication baud rate of 16Mbps and 12Mbps is not supported.
R20UT0766EJ0200 Rev.2.00
2012.03.30
CHAPTER 4
as the stabilization wait time. After stabilized, set until set ADCE.
CHAPTER 4 CAUTIONS
CAUTIONS
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