IE-789860-NS-EM1 Renesas Electronics America, IE-789860-NS-EM1 Datasheet - Page 37

• Manufacturer Part Number: IE-789860-NS-EM1
• Description: BD EMULATOR 78K0S UPD789860
• Manufacturer: Renesas Electronics America

Specifications of IE-789860-NS-EM1

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

emulation circuit of the IE system realizes emulation via a configuration of emulation CPU, TTL, CMOS-IC, and other
components. Therefore, the target device specifications are different from the IE system specifications.
This chapter describes differences between the target device specifications and the IE system specifications. The
(1) The RC oscillator cannot be emulated in the IE-789860-NS-EM1. For the oscillator, only the functions
(2) When emulating the detection voltage of the low-voltage detection circuit and power-on-clear circuit in the IE-
(3) If a program that illegally accesses EEPROM is executed in the IE-789860-NS-EM1, the error message
(4) The IE-789860-NS-EM1 includes a “POC switching circuit” that controls the power-on-clear (POC) circuit
(5) The oscillation stabilization wait time after the release of STOP mode by RESET or the release of reset via
described in 3.4 Clock Settings can be emulated.
789860-NS-EM1, the detection voltage must be finally checked with EEPROM products because of the effect
of power supply fluctuations and noise.
“Unspecified illegal” is displayed and a break occurs. The illegal access conditions for EEPROM are shown
in Table 5-1.
functions by software. Perform the ON/OFF settings using an SFR.
the POC circuit is fixed to “2
described in 3.5 Mask Option Settings can be emulated.
<1>
<2>
<3>
<4>
<5>
<6>
<7>
<8>
<9>
If a write instruction is executed to EEPROM when EWC = 0
If a write instruction is executed to EEPROM while the clock selected by EEPROM is stopped
If a write instruction is executed to EEPROM while EEPROM is being written
If read instruction is executed from EEPROM while EEPROM is being written
If instruction fetch is executed from EEPROM while EEPROM is being written
If EWC = 0 is set while EEPROM is being written
If the main clock is stopped while EEPROM is being written
If the count clock selection of the write time setting timer is changed and executed while EEPROM is being written
If RESET is input while EEPROM is being written
Table 5-1. Illegal Access Conditions for EEPROM
7
/f
X
” in the IE-789860-NS-EM1.
CHAPTER 5
User’s Manual U16499EJ1V0UM
CAUTIONS
For the mask options, only the functions
35