
Target interface (SH7720/SH7721) Jun. 30, 2009 (Second Edition)
MDR connector
Signals
CPU Pin No. CPU Pin No.
Pin
No.
Signal
Input/
Output
*1
PLBG0256
GA-A
PLBG0256
KA-A
Pin
No.
Signal
Input/
Output
*1
PLBG0256
GA-A
PLBG0256
KA-A
1 AUDCK Output P19 P18 2 GND
3 AUDATA0 Output P18 R20 4 GND
5 AUDATA1 Output N19 N18 6 GND
7 AUDATA2 Output N18 P20 8 GND
9 AUDATA3 Output N20 R17 10 GND
11 AUDSYNC Output R17 T20 12 GND
13 N.C. 14 GND
15 N.C. 16 GND
17 TCK Input T18 T18 18 GND
19 TMS Input T17 U20 20 GND
21 TRST Input R19 R18 22
GND
(
ASEMD0)
*2
(Input) (R18) (R21)
23 TDI Input U18 T21 24 GND
25 TDO Output U20 W20 26 GND
27 ASEBRKAK Output T20 V18 28 GND
29 VCC
*3
Output 30 GND
31 RESETP Output V18 V17 32 GND
33 GND 34 GND
35 N.C. 36 GND
・ For the pin where stated as N.C. in the table, leave the signal unconnected.
*1: Input/output is based on the target system.
*2: To debug,
ASEMD0 pin needs to be brought to Low state.
Shown in the target connection reference diagram is the circuit that brings ASEMD0 pin to Low state when you connect ASEMD0 signal to the connector for
debugger.
If you do not connect ASEMD0 signal to Pin No. 22 of the connector for debugger, the circuit that sets ASEMD0 pin by switch circuit will do. However, in such
case, do not connect ASEMD0 pin to Pin No. 22 of the connector for debugger, but connect Pin No. 22 of connector for the debugger to GND.
*3: For VCC, connect I/O power of CPU. Debugging can be performed even if the signal is N.C., however, by connecting I/O power, leak during
the target system power OFF can be prevented.
Target connection reference diagram
MDR connector specifications
Recommended connector
Manufacturer 3M
Model 10236-52A2JL
(Top view on the target board)
(Side view on the target board)
(Pin Configuration)
(For detailed dimensions of the connector,
refer to the documentation by manufacturer of the connector.)
*Please look at the pin configuration diagram above and make
sure that the connector is in the right direction before connecting.
Please check the pin number in the signal table above and make sure
the signal and the pin numbers match.
*1:
RESETP, which is connected to Pin No. 31 of the connector for debugger, is the signal that debugger uses for monitoring the state of RESETP
pin of CPU.
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