CHAPTER 6 HOW TO USE MINICUBE2 WITH 78K0R MICROCONTROLLER
User’s Manual U18371EJ1V0UM
135
6.1.1 Pin assignment
This section describes the interface signals used between MINICUBE2 and the target system. Table 6-2 lists
the pin assignment. Table 6-3 describes the functions of each pin. The pin assignment varies between 1-wire
and 2-wire modes, so design the circuit appropriately according to the circuit connection examples described on
the following sections.
Table 6-2. Pin Assignment
Pin Name
Note
Pin No.
For 1-Wire Mode
For 2-Wire Mode
1 GND
2 RESET_OUT
3 RXD
4 VDD
5 TXD
6 R.F.U.
7 R.F.U.
8 R.F.U.
9 R.F.U.
10 R.F.U.
11 R.F.U.
12 R.F.U.
13 R.F.U.
14 FLMD0
15 RESET_IN
16 R.F.U.
CLK_IN
Note
Signal names in MINICUBE2
Table 6-3. 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
FLMD0
OUT
Pin used to set the target device to debug mode or programming mode
RXD
Note 2
IN/OUT
Pin used to transmit/receive command/data between the target device
TXD
Note 2
IN/OUT
Pin used to transmit/receive command/data between the target device
CLK_IN
IN
Pin used to input handshake signal from the target device
R.F.U.
-
This pin is not used, so leave it open.
Notes 1.
As seen from MINICUBE2
2.
The RXD and TXD pins are internally shorted by setting the mode select switch to M1.
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
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
