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QB-78F1030
4.1
Cautions Regarding Differences Between Target Device and Emulator
When debugging is performed by connecting the QB-78F1030 to the target system, the QB-78F1030 emulates the
target device as if it operates in the target system. However, the target device and the QB-78F1030 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-78F1030.
4.1.1
Operation after target system power application
After power application, a program will be executed for the target device mounted in the target system when reset is
released. However, with the QB-78F1030, the program does not start until an operation to start execution is performed
after the program is downloaded using the debugger.
4.1.2
Oscillator
The QB-78F1030 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-78F1030 is connected.
4.1.3
Pin characteristics
The pin characteristics of the QB-78F1030 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-78F1030 and the target system.
4.1.4
On-chip debug function
The on-chip debug function cannot be emulated.
4.1.5
Current consumption
The current consumption of the QB-78F1030 differs from that of the target device.
The current consumption may reach up to 199 mA. The same amount of current is consumed in standby mode.
4.1.6
P62, P63, P121, and P122 pins
The input characteristics of the P62, P63, P121, and P122 pins differ between the target device and emulator.
Target device
IECUBE
Target device
IECUBE
R20UT0289JJ0100 Rev. 1.00
Sep 30, 2010
CHAPTER 4 CAUTIONS
Table 4-1. Input Characteristics of P62 and P63 Pins
Item
Input Characteristics of P62 and P63 Pins
CMOS input
Schmitt input
Table 4-2. Input Characteristics of P121 and P122 Pins
Item
Input Characteristics of P121 and P122 Pins
Schmitt input
CMOS input
CHAPTER 4 CAUTIONS
Page 26 of 28
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