IE-789418-NS-EM1 Renesas Electronics America, IE-789418-NS-EM1 Datasheet - Page 39

• Manufacturer Part Number: IE-789418-NS-EM1
• Description: BD EMULATOR 78K0S UPD78940X/41X
• Manufacturer: Renesas Electronics America

Specifications of IE-789418-NS-EM1

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NS-EM1’s target interface circuit.
emulation circuits such as an emulation CPU, TTL, and CMOS-IC.
operate as the actual target device would operate in the target system.
(1) Signals input to or output from the EVA chip and the peripheral EVA chip
(2) Signals input from the target system via a gate
(3) Analog signals
(4) Other signals
(1) Signals input to or output from the EVA chip and peripheral EVA chip
(2) Signals input from the target system via a gate
CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICES AND TARGET INTERFACE CIRCUITS
This chapter describes differences between the target device’s signal lines and the signal lines of the IE-789418-
Although the target device is a CMOS circuit, the IE-789418-NS-EM1’s target interface circuit consists of
When the IE system is connected with the target system for debugging, the IE system performs emulation so as to
However, some minor differences exist since the operations are performed via the IE system’s emulation.
The IE-789418-NS-EM1’s circuit is used as follows for signals listed in (1) to (4) above.
The following signals perform the same operations as in the µ PD789407A, 789417A Subseries. However, a 1
MΩ pull-down resistor and 100 Ω resistor are inserted in series. Refer to Figure 4-1 Equivalent Circuit of
Emulation Circuit 1.
• Signals related to port 0
• Signals related to port 2
• Signals related to port 4
• Signals related to port 5
Since the following signals are input via a gate, their signals show a delay compared to the µ PD789407A,
789417A Subseries. Refer to Figure 4-2 Equivalent Circuit of Emulation Circuit 2.
• RESET signal
• Signals related to X1, XT1
User’s Manual U14364EJ3V0UM
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