NEC V850/SC1 Switch User Manual


 
User’s Manual U15776EJ1V0UM
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CHAPTER 5 DIFFERENCES BETWEEN TARGET DEVICE AND TARGET INTERFACE CIRCUIT
Differences between the signal lines of the target device and the signal lines of the IE-703089-MC-EM1 target
interface circuit are described in this chapter.
The target device is a CMOS circuit, whereas the target interface circuit of the IE-703089-MC-EM1 is configured
with an emulation circuit such as a gate array TTL or CMOS-IC.
When debugging the IE system connected to the target system, the IE system emulates as if the real target device
is operating on the target system.
Small differences occur however, because the IE system is emulating actual operation.
(1) Signals input/output to/from the emulation gate array
P47 to P40
P57 to P50
P67 to P60
P97 to P90
P117 to P110
P133 to P130
(2) Other signals
P07 to P00
P17 to P10
P27 to P20
P37 to P30
P77 to P70
P83 to P80
P107 to P100
P127 to P120
P147 to P140
P157 to P150
P176 to P170
V
DD0
PORTVDD0
, PORTV
DD1
, PORTV
DD2
, ADCV
DD
CLKOUT
RESET
VDD1
MODE/VPP
CPUREG
X1, X2, XT1, XT2
GND0, GND1, GND2, PORTGND0, PORTGND1, ADCGND
Figure 5-1 shows the signals in (1) and (2) above in the circuit for the IE system.