IE-789026-NS-EM1 Renesas Electronics America, IE-789026-NS-EM1 Datasheet - Page 32

• Manufacturer Part Number: IE-789026-NS-EM1
• Description: BD EMULATOR 78K0 UPD789026
• Manufacturer: Renesas Electronics America

Specifications of IE-789026-NS-EM1

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

NS-EM1’s target interface circuit.
emulation CPU, TTL, CMOS-IC, and other components.
operate as the actual target device would operate in the target system.
(1) Signals input to or output from the evaluation chip and peripheral evaluation chip
(2) Signals input from the target system via a gate
(3) Other signals
(1) Signals input to or output from the evaluation chip and peripheral evaluation chip
(2) Signals input from the target system via a gate
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CHAPTER 4
This chapter describes differences between the target device’s signal lines and the signal lines of the IE-789026-
Although the target device is a CMOS circuit, the IE-789026-NS-EM1’s target interface circuit consists of an
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-789026-NS-EM1’s circuit is used as follows for signals listed in (1) to (3) above.
The following signals perform the same operations as in the µ PD789026 Subseries. However, a 1 MΩ pull-down
resistor and 100 Ω resistor are inserted in series for the signals related to ports. Refer to Figure 4-1 Equivalent
Circuit 1 of Emulation Circuit.
• Signals related to port 0
• Signals related to port 1
• Signals related to port 2
• Signals related to port 3
• Signals related to port 4
• Signals related to port 5
Since the following signals are input via a gate, their timing shows a delay compared to the µ PD789026
Subseries.
• RESET signal
• X1 signal
Refer to Figure 4-3 Equivalent Circuit 3 of Emulation Circuit.
DIFFERENCES BETWEEN TARGET DEVICE AND TARGET INTERFACE CIRCUIT
User’s Manual U14362EJ2V1UM