HS2214EPI62H Renesas Electronics America, HS2214EPI62H Datasheet - Page 197
HS2214EPI62H
Manufacturer Part Number
HS2214EPI62H
Description
EMULATOR BASE UNIT H8S/2214
Manufacturer
Renesas Electronics America
Type
Microcontrollerr
Specifications of HS2214EPI62H
Contents
E6000 Emulator and CD-ROM
For Use With/related Products
H8S/2214
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
- Current page: 197 of 238
- Download datasheet (2Mb)
7.2 User System Interface
All user system interface signals are directly connected to the MCU in the emulator with no buffering except for
those listed below which are connected to the MCU through control circuits:
• NMI
• RESET
• MD2, MD1, MD0
• XTAL
• EXTAL
• WAIT
7.2.1
All user system interface signals are protected from over- or under-voltage by use of diode arrays except for the
AVcc and Vref.
Pull-up resistors are connected to the port signals except for the analog port signals.
The PVcc signals (except for AVcc signals) at the head of the user system interface cable are connected together,
which is monitored by the emulator to detect whether the user system hardware is connected.
7.2.2
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 hardware to
compensate for propagation delays.
The following diagrams show the equivalent circuit examples of the interface signals.
Default:
Mode Pins (MD2, MD1, and MD0): The mode pins are only monitored. The CPU mode depends on the High-
performance Embedded Workshop settings.
Signal Protection
User System Interface Circuits
Emulator
control
circuit
MCU
Figure 7.2 User System Interface Circuit for Mode Pins
Figure 7.1 Default User System Interface Circuit
47 k
47 k
Ω
Ω
PVcc
PVcc
47
47
Ω
Ω
User system
interface cable
User system
interface cable
175
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