User`s manual

Table Of Contents
182
7.6.2 Operating Voltage and Frequency Specifications
Table 7.1 shows the MCU operating voltage and frequency specifications supported by the E6000 emulator. If
the emulator is used in an environment that exceeds the operating voltage range and operating frequency range
guaranteed for the MCU operation, normal emulator operation is not guaranteed. Note that the operation with
low voltage or high frequency is not supported in some MCUs.
Table 7.3 Operating Voltage and Frequency Specifications
No.
MCU Types
Operating Voltage (V)
Operating Frequency (φ)
(MHz)
1.8-5.5 1.0-2.0
2.7-5.5 1.0-5.0
1 H8/3847R group
H8/3827R group
4.5-5.5 1.0-8.0
1.8-3.6 0.5-2.0 2 H8/3847S group
H8/3827S group
2.7-3.6 0.5-5.0
1.8-5.5 0.2-0.5
2.2-5.5 0.2-1.0
2.6-5.5 0.2-1.6
3.0-5.5 0.2-2.0
3 H8/3887 group
H8/3867 group
H8/3847 group
H8/3827 group
4.5-5.5 0.2-3.0
1.8-3.6 1.0-2.0 4 H8/3937R group
H8/3937 group
2.7-3.6 1.0-5.0
NOTE
For details on the operating voltage and frequency specifications,
refer to the MCU hardware manual.
7.7 User System Interface of H8/388R E6000 Emulator
All user system interface signals are directly connected to the MCU in the emulator with no buffering.
7.7.1 Signal Protection
All user system interface signals are protected from over- or under-voltage by use of diode arrays except for the
AVcc and analog port signals.
Pull-up resistors are connected to the port signals except for the analog port signals.
The Vcc pins (except for the AVcc pin) at the head of the user system interface cable are connected together.
The emulator monitors the voltage level of the Vcc pins and displays the power-supply status in the [Extended
Monitor] window.
If the user system interface cable is not connected to the user system, the Vcc of the MCU is 5 V.