CHAPTER 4 HOW TO USE MINICUBE2 WITH 78K0 MICROCONTROLLER
User’s Manual U18371EJ1V0UM
52
4.1.1 Pin assignment
This section describes the interface signals used between MINICUBE2 and the target system. Table 4-1 lists
the pin assignment when a 16-pin target cable is used. Table 4-2 describes the functions of each pin. The pin
assignment varies depending on whether the operation is debugging or programming, so design the circuit
appropriately according to the circuit connection examples described on the following sections.
Table 4-1. Pin Assignment When Using 16-Pin Target Cable
Pin Name
Note
Pin No.
For Debugging
(with 78K0-OCD
Board Connected)
For Programming
1 GND
2 RESET_OUT
3 R.F.U. RXD
4 V
DD
5 R.F.U. TXD
6 R.F.U.
7 R.F.U.
8 R.F.U.
9 CLK
10 R.F.U.
11 R.F.U.
-
12 R.F.U.
FLMD1
13 DATA
R.F.U.
14 FLMD0
15 RESET_IN
R.F.U.
16 R.F.U.
Note
Signal names in MINICUBE2
Table 4-2. Pin Functions
Pin Name
IN/OUT
Note 1
Description
RESET_IN
IN
Pin used to input reset signal from the target system
RESET_OUT
OUT
Pin used to output reset signal to the target device
CLK
OUT
Pin used to output clock signal to the target device
DATA
IN/OUT
Pin used to input/output for data communication during debugging
FLMD0
OUT
Pin used to set the target device to debug mode or programming mode
FLMD1
OUT
Pin used to set programming mode
Note 2
RxD
IN
Pin used to receive command/data from the target device
TxD
OUT
Pin used to transmit command/data to the target device
R.F.U.
-
This pin is not used, so leave it open.
Notes 1.
As seen from MINICUBE2.
2.
Not used in some devices.
Target system
TOP VIEW
Pin 1
13
14
11
12
15
16
9
10
7
8
5
6
3
4
1
2
Pin assignment of target connector
to be mounted on target system
78K0-OCD board is not
required for programming.
Target system
TOP VIEW
Pin 1
13
14
11
12
15
16
9
10
7
8
5
6
3
4
1
2
Pin assignment of target connector
to be mounted on target system
78K0-OCD board is not
required for programming.
