iSYSTEM, March 2017
62/66
14-pin 2.54mm Renesas RH850 Cable Adapter
Ordering code
IC50176
This adapter is used to connect the iC5000 / iC5500 / iC5700 development system to Renesas RH850 based
target. It connects to Debug/Trace module on one side and to the target debug connector on the other side. It can
be used for targets featuring 14-pin 2.54 pitch target debug connector with RH850 pinout.
The following pinout is valid on the target side:
Signal
direction
Signal description
Signal
Pin Pin Signal
Signal description
Signal
direction
O
Debug JTAG
TCK
1
2
GND
Ground
O
Debug JTAG
TRST
3
4
FLMD0
Flash Mode
O
I
Debug JTAG
TDO
5
6
FLMD1
Flash Mode
O
O
Debug JTAG
TDI
7
8
VTREF
Reference voltage
I
O
Debug JTAG
TMS
9
10
NC
Not Connected
I
Synchronization
~RDY
11 12
GND
Ground
I/O
CPU Reset
RESET
13 14
GND
Ground
14-pin Renesas RH850 target pinout
Note: 14-pin 2.54mm RH850 Cable Adapter features resettable fuses on all pins except for pin 11. These fuses
protect debug signals against overcurrent and cycle back to a conductive state after the excessive current fades
away. A signal on pin 11 is protected via 22 ohm serial resistor.
The adapter connects to the target via a 14-pin 2.54 mm connector (for example Yamaichi: FAS-1401-2101-2-
OBF). A target should feature a matching part (for example WÜRTH ELEKTRONIK: 612 014 216 21).