E2/E2 Lite
R20UT4582EJ0100 Rev.1.00
Page 17 of 30
Jul.16.19
2.6.2
Internal Circuits of the E2 Lite
Figure 2.8 shows the internal circuits of the E2 Lite with the MCU connected via the SWD interface.
74LVC125
74LVC8T245
74LVC125
3.3 V
Emulator
control
circuit
74LVC8T245
3.3 V
VCC
1
2
4
9
10
3, 5,
15, 17, 19
GND
100 k
Ω
SWCLK
GND
RES#
SWDIO
74LVC125
47
Ω
100 k
Ω
x 3
Power-supply
circuit
(only for use in
the mode to
supply power to
the user system)
User-side
connector
47
Ω
47
Ω
47
Ω
Self-recovering
fuse
Figure 2.8 Internal Circuits of the E2 Lite with the MCU Connected via the SWD Interface
