E1/E20/E2/E2 Lite Additional Document
R20UT1994EJ0900 Rev.9.00
Page 36 of 58
Jan.20.22
2.7
Notes on Designing the User System
2.7.1
Isolator for the E1
For a debugging environment where there is a difference in potential between the GND of the user system
and that of the host PC, use the isolator for the E1 emulator (R0E000010ACB20) which is separately
available from Renesas.
That is, use the isolator for the E1 (R0E000010ACB20) with the E2/E2 Lite in such situations.
2.7.2
Small Connector Conversion Adapter for the E1
A small connector conversion adapter for the E1 (R0E000010CKZ11) is separately available from Renesas
for user system boards which are too small to mount the 14-pin connector that is the standard connector for
the E1, E2, and E2 Lite. By using the adapter, you can reduce the area taken up by the connector mounted
on your system.
However, when you use the small connector conversion adapter for the E1, be aware that the pin
assignments of the connector differ from those of the standard interface connector for the E1, E2, and E2
Lite. The pin assignments on the 14-pin connector when the small connector conversion adapter for the E1 is
used are shown in Table 2-4.
The small connector conversion adapter for the E1 can also be used with the E2 and E2 Lite.
User-system interface cable for
E1 (R0E000010KCE00),
E2 Lite (RTE0T0002LKCE00000R), or
E2 (RTE0T00020KCE00000R) and
20-pin (1.27-mm pin spacing) to 14-pin (2.54-mm pin spacing)
connector conversion adapter
Small connector conversion adapter for the E1
(R0E000010CKZ11)
14-pin connector on the user system (TFM-107-02-L-D
(SMT) or TFM-107-01-L-D (DIP)): manufactured by
Samtec, Inc.
User system
Pin 1
Pin 13
Orientation key
CN2
CN1
Figure 2-21 Usage of the Small Connector Conversion Adapter for the E1
