CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICES AND TARGET INTERFACE CIRCUITS
User’s Manual U13390EJ2V0UM
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(1) Signals input to or output from the EVA chip and the peripheral EVA chip
The following signals perform the same operations as in the
µ
PD789800 Subseries.
•
Signals related to port 0
•
Signals related to port 1
•
Signals related to port 2
•
Signals related to port 4
•
Signals related to USB
(2) Signals input from the target system via a gate
Since the following signals are input via a gate, their timing shows a delay compared to the
µ
PD789800
Subseries.
•
RESET signal
•
Signals related to clock input
(3) Other signals
•
V
DD
pin
The emulation CPU operates with the internal power supply of the IE system (5 V) when not connected to the
target system, and operates with the voltage (LV
CC
) supplied from the voltage supply pin (TM1) when
connected to the target system.
The V
DD
pin of the target system is used only for control of LED1 (USER V
DD
), which indicates whether the
target system’s power is on or off.
•
V
SS
pin
The V
SS
pin is internally connected to GND in the IE-789801-NS-EM1.
•
V
PP
/IC pins
These are not used for the IE-789801-NS-EM1
•
X2 pin
This is not used for the IE-789801-NS-EM1.
