Appendix A Dsu-Fr Cable Specifications - Fujitsu MB2147-01 Application Note

APPENDIX A DSU-FR Cable Specifications

Table A-3 Emulator Interface Signal Line Terminal Arrangement (connector for DSU-4 )
Terminal Terminal
number name
20 ICLK
18 ICS[0]
17 ICS[1]
16 ICS[2]
14 ICD[0]
13 ICD[1]
12 ICD[2]
11 ICD[3]
10 BREAK
5 TRST
8 PLEVEL
(*1)
7 INIT
6 xRSTIN
3 DSUIO
2 V T*1
CC
1 N.C
4 UV
CC
9,15,19 GND
*1: Some evaluation MCUs do not have a PLEVEL or V
*2: Connect to the V pin if the evaluation MCU has a single power supply and to the external I/O power supply if it has
CC
multiple power supplies.
48
Input or output
Input Emulator control
Input
Input
Input
Input/Output
Input/Output
Input/Output
Input/Output
Output
Output
Output
Output Evaluation MCU reset
Input User system reset
- Spare
Output Dedicated DSU power
- -
Input User system power
- GND
Description
•
•
•
•
•
•
•
•
•
•
•
•
T terminal. In such cases, leave the terminal unconnected.
CC
Connection conditions
Connected to the terminal with the same
name on the evaluation MCU.
Has a maximum wiring length of 50 mm.
Connected to the reset terminal of the
evaluation MCU.
The reset output circuit of the user
system and the evaluation MCU reset
terminal must be isolated during use of
the emulator.
Open drain output. Includes a 10kΩ pull-
up resistor using the UV
CC
(V = +0.4 V max, I =12 mA)
OL OL
Connected to the reset output circuit of
the user system.
Enabled when "L" level signals are
input.
= -10 µA)
(V = +1.7 V min, I
IH IH
= 10 µA)
(V = +0.8 V max, I
IL IL
Must be left unconnected because it is
not used.
Connected to the terminal with the same
name on the evaluation MCU.
(+3.3 V / 350 mA)
Must be left unconnected because it is
not used.
Connected to the external I/O power
supply of the evaluation MCU.
(0 V to +5.5 V / 100 mA or less)
Connected to the V terminal (0 V) of
SS
the evaluation MCU.
terminal.