HS2556EPI61H Renesas Electronics America, HS2556EPI61H Datasheet - Page 31

• Manufacturer Part Number: HS2556EPI61H
• Description: EMULATOR BASE H8SX/2556
• Manufacturer: Renesas Electronics America

Specifications of HS2556EPI61H

• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

2.6
All signals are directly connected to the MCU in the emulator with no buffering with the exception of those
listed in section 7, Hardware Specifications Specific to This Product.
2.6.1
All signals are over/under voltage protected by use of diode arrays. The only exceptions being the AV
All ports have pull-up resistors except for analog port.
All V
then monitored by the emulator to detect powered user system presence.
2.6.2
The interface circuit between the MCU in the emulator and the user system has a signal delay of about 8 ns due
to the user system interface cable and it includes pull-up resistors. Therefore, high-impedance signals will be
pulled up to the high level. When connecting the emulator to a user system, adjust the user system to compensate
for propagation delays.
The following diagrams show the equivalent circuit examples of the interface signals. The interface circuits
depend on the MCU type. For details, refer to section 7, Hardware Specifications Specific to This Product.
2.6.3
The oscillator circuit has been implemented on the user system interface cable head. For details on the oscillator
circuit, refer to the user's manual for each user system interface cable.
2.6.4
An 8-pin connector, marked EXT1 (on the right under the user system interface cable connector), on the
emulator case accommodates four external probe inputs and two trigger outputs. The pin assignment of this
connector is shown in figure 2.7.
CC
pins on the cable head assembly are connected together (with the exception of the AV
Hardware Interface
Signal Protection on the emulator
User System Interface Circuits
Clock Oscillator
External Probe 1 (EXT1)/Trigger Output
Figure 2.7 External Probe Connector 1
1
Probe
2
3
4
GND
T
Trigger output
UVCC
GND
T
5V
EXT1
CC
pin), and are
CC
and Vref.
9