NEC uPD780328 Subseries - Manual (Page 38)

CHAPTER 4 DIFFERENCES BETWEEN TARGET DEVICES AND TARGET INTERFACE CIRCUITS
User’s Manual U16214EJ1V0UM
38
Figure 4-1. Equivalent Circuit of Emulation Circuit 1
Figure 4-2. Equivalent Circuit of Emulation Circuit 2
P25 to P20
P34 to P30
P17 to P10
P87 to P80
P05 to P00
100 Ω
100 Ω
100 Ω
1 M Ω
1 M Ω
1 M Ω
IE system side Probe side
P73 to P70
100 Ω
1 M Ω
P97 to P90
P120
ANI8, ANI9
AV
REF1
, AV
REF0
, AV
SS0
S23 to S0
COM3 to COM0
PD78F0338
Emulation CPU
µ
P57 to P50
P67 to P64
P47 to P40
100 Ω
100 Ω
100 Ω
1 M Ω
1 M Ω
1 M Ω
PD780009A
Emulation CPU
IE system side Probe side
P63 to P60
100 Ω
1 M Ω
HSK120
30 k Ω
Photocoupler
LV
CC
µ