UPD78F9500MA-CAC-A Datasheet, PDF (284/342 Pages) Renesas Technology Corp – 8-Bit Single-Chip Microcontrollers

CHAPTER 17 ON-CHIP DEBUG FUNCTION
Figure 17-4. Circuit Connection for the Case Where QB-MINI2 Is Used for Debugging and
Debugging of INTP1 Pin Is Performed Only with Real Machine
VDD
Target connector
12
INTP
1 kΩ
1
2
3
Target device
INTP1
External device
I/O to INTP1
* Jumper setting
When debugging with QB-MINI2 connected:
Other than above:
1-2 shorted
2-3 shorted
Caution If debugging is performed with a real machine running, without using QB-MINI2, write the user
program using the QB-Programmer. Programs downloaded by the debugger include the monitor
program, and such a program malfunctions if it is not controlled via QB-MINI2.
17.1.2 Connection of X1 and X2 pins
The X1^{Note 1}, X2 ^{Note 2} pins are used when the debugger is started for the first time (when downloading the monitor
program) and when programming is performed with the QB-Programmer.
<R> Notes 1. μPD78F920x: X1/P23/ANI3, μPD78F950x: EXCLK/P23
<R>
2. μPD78F920x: X2/P22/ANI2, μPD78F950x: P22
Figure 17-5. Circuit Connection for the Case Where X1 and X2 Pins Are Used in Target System
Target connector
Target device
3
1
X2
2
3
X2
μPD78F920x: X2
μPD78F950x: P22
9
1
X1
2
3
X1
μPD78F920x: X1
μPD78F950x: EXCLK
External components
Oscillator or
external device
* Jumper setting
When debugger is started for the first time
(downloading the monitor program) or when
programming is performed with QB-Programmer: 1-2 shorted
Other than above:
2-3 shorted
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User’s Manual U18172EJ3V0UD