E1/E20/E2/E2 Lite Additional Document
R20UT1994EJ0900 Rev.9.00
Page 35 of 58
Jan.20.22
2.6.4
Internal Circuits of the E2 Lite (when the RL78 Family is Connected)
Figure 2-20 shows the internal circuits of the E2 Lite with the RL78 family connected.
Emulator
control
circuit
RSTPU
VDD
4
8
47
W
74LVC125
74LVC8T245
3.3 V
TOOL0 5
74LVC125
74LVC125
74LVC8T245
6
RESET_IN
74LVC125
74LVC8T245
47
W
10
RESET_OUT
3.3 V
47
W
100 k
W
GND 14
74LVC8T245
13
RESET_OUT
47
W
2,12
GND
Power-supply circuit
(only for use in the mode to
supply power to the user
system)
EMVDD 9
47
W
47
W
74LVC8T245
74LVC125
100 k
W
× 5
1 M
W
1,3,7,11
74LVC125
74LVC8T245
47
W
User-side
connector
Self-recovering
fuse
Figure 2-20 Internal Circuits of the E2 Lite (when the RL78 Family is Connected)
