CHAPTER 4 HOW TO USE MINICUBE2 WITH 78K0 MICROCONTROLLER
User’s Manual U18371EJ1V0UM
57
Figure 4-5. When Both Debugging and Programming Are Performed
(with X1/X2 Communication, X1 Oscillator Is Used) (FLMD1 Pin Is Provided)
Notes
1.
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.
2.
During debugging, the clock mounted on the 78K0-OCD board can be supplied. If no clock is mounted, a
clock of 4, 8, or 16 MHz can be supplied. During flash programming, use the clock mounted on the target
system.
3.
For debugging, short the jumper and mount no clock circuit.
For flash programming and the target device operation (without MINICUBE2 connected), leave the jumper
open and mount a clock circuit.
4.
This connection is designed assuming that the RESET signal is output from the N-ch open-drain buffer
(output resistance: 100
Ω
or less). For details, refer to
4.1.3 Connection of reset pin
.
5.
The circuit enclosed by a dashed line is designed for flash self programming, which controls the FLMD0 pin
via ports. Use the port for inputting or outputting the high level. When flash self programming is not
performed, a pull-down resistance for the FLMD0 pin can be within 1 to 10k
Ω
.
1
2
3
4
5
6
7
8
9
10
GND
RESET_OUT
V
DD
R.F.U.
R.F.U.
R.F.U.
CLK
Note 2
R.F.U.
_RESET
TxD
V
DD
RxD
GND
X1
10 k
Ω
RESET signal
Note 3
11
12
13
14
15
16
R.F.U.
FLMD1
DATA
FLMD0
RESET_IN
Note 4
R.F.U.
FLMD0
X2
8
10 k
Ω
Port X
1 k
Ω
Target connector
Target device
Note 5
Reset connector
1 k
Ω
3 to 10 k
Ω
1 to 10 k
Ω
Clock
circuit
V
DD
V
DD
V
DD
V
DD
RxD
Note 1
TxD
Note 1
1 to 10 k
Ω
1 to
10 k
Ω
FLMD1
P31
1
2
3
4
5
6
7
8
9
10
GND
RESET_OUT
V
DD
R.F.U.
R.F.U.
R.F.U.
CLK
Note 2
R.F.U.
_RESET
TxD
V
DD
RxD
GND
X1
10 k
Ω
RESET signal
Note 3
11
12
13
14
15
16
R.F.U.
FLMD1
DATA
FLMD0
RESET_IN
Note 4
R.F.U.
FLMD0
X2
8
10 k
Ω
Port X
1 k
Ω
Target connector
Target device
Note 5
Reset connector
1 k
Ω
3 to 10 k
Ω
1 to 10 k
Ω
Clock
circuit
V
DD
V
DD
V
DD
V
DD
RxD
Note 1
TxD
Note 1
1 to 10 k
Ω
1 to
10 k
Ω
1 to
10 k
Ω
FLMD1
P31
