Internal Circuits Of The Emulator; Internal Circuits Of The E1 (When The Rl78 Family Is Connected) - Renesas E1 User Manual

E1/E20/E2/E2 Lite Additional Document
2.6

Internal Circuits of the Emulator

2.6.1

Internal Circuits of the E1 (when the RL78 Family is Connected)

Figure 2-9 shows the internal circuits of the E1 with the RL78 family connected.
Power-supply circuit
(only for use in the mode to
supply power to the user
system)
Emulator
control
circuit
Figure 2-9 Internal Circuit of the E1 (when the RL78 Family is Connected)
R20UT2937EJ0301 Rev.3.01
Jul 1, 2020
3.3 V
74LVC125
74LVC8T245
EMVDD
74LVC125
74LVC2T245
74LVC125
74LVC8T245
74LVC125
74LVC8T245
74LVC125
3.3 V
74LVC8T245
74LVC125
100 kΩ
22 Ω
EMVDD
22 Ω 100 kΩ
22 Ω
22 Ω
3.3 V
22 Ω 100 kΩ
470 Ω
22 Ω
2. Designing the User System
User-side
connector
VDD
8
100 kΩ × 2
RSTPU
4
100 kΩ
TOOL0
5
RESET_IN
6
RESET_OUT
10
GND 14
EMVDD
EMVDD 9
RESET_OUT
13
Self-recovering
fuse
GND
2,12
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