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CHAPTER
Target connector
RESET_OUT
RxD
CLK
FLMD1
RESET_IN
Notes 1. This connection is designed assuming that the RESET signal is output from the N-ch open-drain buffer
(output resistance: 100 Ω or less).
2. Connect TxD (transmit side) of the target device to RxD (receive side) of the target connector, and TxD
(transmit side) of the target connector to RxD (receive side) of the target device.
3. When the input clock to the target device is generated on the target system, CLK does not need to be
connected. Please leave it open when no connection is made. When no input clock is generated, or the
dedicated program adapter (FA series) is used, CLK can be used as a pin to feed the external clock (4/8/16
MHz) to the target device. For the connection, refer to the user's manual for the target device.
4. If FLMD1 pin is provided on the target device, the connection must be made. If FLMD1 pin is not provided
on the target device, leave it open.
5. This is for pin processing when not used as a device.
To change this value to another resistance value, refer to APPENDIX A EQUIVALENT CIRCUIT.
4
HOW TO USE MINICUBE2 WITH 78K0 MICROCONTROLLER
Figure 4-13.
When Only Programming Is Performed
V
DD
1
GND
2
Note 1
3
Note 2
4
V
DD
5
Note 2
TxD
6
R.F.U.
7
R.F.U.
8
8
8
R.F.U.
9
Note 3
10
R.F.U.
11
R.F.U.
12
Note 4
13
DATA
14
FLMD0
15
16
R.F.U.
10kΩ
For details, refer to 4.1.3
User's Manual
V
V
DD
DD
Note 5
3k to 10kΩ
Note 5
1k to 10kΩ
1k to
1k to
V
10kΩ
10kΩ
DD
1kΩ
Connection of reset pin.
U18371EJ5V0UM
Target device
GND
_RESET
TxD
V
DD
RxD
FLMD1
FLMD0
Reset connector
RESET signal
67
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