Target Adaptation AutoFocus II Mictor for DesignWare ARC Trace


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Target Connector


The adaptation applies for the following TRACE32 products:

Order No.Probe
LA-3913Preproc. for ARC/AUTOFOCUS II 600 Flex 


Target Connector Type


Tyco Part NumberDescription
2-5767004-2Vertical, surface mount, board to board/cable connector, RoHS compliant.
767054-1Vertical, surface mount, board to board/cable connector.
767061-1Vertical, surface mount, board to board/cable connector.
5767044-1Right angle, straddle mount, board to board/cable connector, RoHS compliant.

Link to Tyco Electronics

Target Connector Placement


The adaptation uses one or two 38 pin Mictor connectors.
The second connector is only needed if the target trace port provides more than 16 trace data pins and for 8/16 bit demuxed mode.
A separation distance of 1350 mil is required if adaption without flex cable is intended.
We recommend to place the even numbered pins at the PCB border side (flex cable won't be twisted).

 

Signal Description (Nexus)


Debug Signals

The pinout of the Mictor connector optionally includes the debug signals which needs to go to the Debug Cable
(20-pin standard header). The Preprocessors have a 20-pin connector where the user can plug in the Debug Cable.
Alternatively the Debug Cable can be plugged on a separate 20-pin connector on the target. In this case there is no
need to connect the debug signals to the Mictor. For better signal quality it is better not to connect them.
The debug signals are TDI, TDO, TMS, TCK, RTCK, TRST-, EVTI, EVTO, SRST-, VREF-DEBUG.
Pin Direction Description
TCK|TCKC to CPU JTAG Clock. It is recommended to put a pull-down to GND on this signal.
TMS to CPU Standard JTAG TMS: It is recommended to put a pull-up to VTREF on this signal for standard 4-pin JTAG.
TMSC to/from CPU Compact JTAG TMSC: Your chip should have a bus-hold on this line for compact JTAG.
TDI to CPU JTAG TDI. It is recommended to put a pull-up to VTREF on this signal.
Only required for standard 4-pin JTAG / Optional signal for compact JTAG.
TDO from CPU JTAG TDO. (No pull-up or pull-down is required.)
Only required for standard 4-pin JTAG / Optional signal for compact JTAG.
TRST- to CPU JTAG Testport Reset. (Optional, No pull-up or pull-down is required.)
RTCK
from CPU
JTAG Return Clock. (Optional, No pull-up or pull-down is required.)
VREF-DEBUG from CPU Reference voltage. This voltage should indicate the nominal HIGH level for the JTAG pins. So for example, if your signals have a voltage swing from 0 V ... 3.3 V, the VREF-DEBUG pin should be connected to 3.3 V.
SRST- to/from CPU System Reset Signal. (Optional)
If your target board has a low active CPU reset signal, you can connect this low active reset signal to this pin. This enables the debugger to detect a CPU reset. Furthermore the debugger can drive this pin to GND to hold the CPU in the reset state. The debugger drives this pin as open-drain, so a pull-up is mandatory.
EVTI
to CPU
Nexus Event In (Optional) Transition to 1 forces a Nexus Synchronization Message
EVTO
from CPU
Nexus Event Out. (optional) This pin is not used by ARC processors.

Trace Signals

Pin Direction Description
MKCO from CPU Nexus Message Clockout. (The trace clock.)
This pin is mandatory and have to be on its dedicated position.
MSEOx from CPU Nexus Message Start/End Out.
These signals controlling the transitions between the state in the Nexus state machine. The signals are mandatory. With TRACE32 command Analyzer.REMAP you can move them to the location of any MSEO or MDO pin.
MDOx from CPU Nexus Message Data Out. (Trace data signals.)
Depending on the build configuration of the ARC trace block, you need 4, 8, or 16 MDO lines. With TRACE32 command Analyzer.REMAP you can move them to the location of any MSEO or MDO pin.
VREF-TRACE from CPU Reference voltage.
This voltage should indicate the nominal HIGH level for the trace pins. So for example, if your signals have a voltage swing from 0 V ... 3.3 V, the VREF-TRACE pin should be connected to 3.3 V.
This pin is mandatory and have to be on its dedicated position.

 

Pin Out Normal Nexus Auxiliary Port



Connector "TRACE A"
Signal

Pin

 Pin

Signal

    
N/C12N/C
N/C34N/C
N/C56MCKO
EVTI (opt.)78EVTO (opt.)
SRST- (opt.)910N/C
TDO1112VREF-TRACE
RTCK (opt.)1314VREF-JTAG
TCK | TCKC1516MDO7
TMS | TMSC1718MDO6
TDI1920MDO5
TRST- (opt.)2122MDO4
MDO152324MDO3
MDO142526MDO2
MDO132728MDO1
MDO122930MDO0
MDO113132GND
MDO103334GND
MDO93536MSEO1
MDO83738MSEO0
    
Connect Pin 39,40,41,42,43 to GND


VCC needs to have VREF-TRACE level.

Connector "TRACE B"

The second connector is not used.

 

Pin Out Dual Eight-bit Nexus Auxiliary Port



Connector "TRACE A"
Signal

Pin

 Pin

Signal

    
N/C12N/C
N/C34N/C
N/C56MCKO
EVTI (opt.)78EVTO (opt.)
SRST- (opt.)910N/C
TDO1112VREF-TRACE
RTCK (opt.)1314VREF-JTAG
TCK | TCKC1516MDO7_A
TMS | TMSC1718MDO6_A
TDI1920MDO5_A
TRST- (opt.)2122MDO4_A
MDO7_B2324MDO3_A
MDO6_B2526MDO2_A
MDO5_B2728MDO1_A
MDO4_B2930MDO0_A
MDO3_B3132MSEO1_B
MDO2_B3334MSEO0_B
MDO1_B3536MSEO1_A
MDO0_B3738MSEO0_A
    
Connect Pin 39,40,41,42,43 to GND


VCC needs to have VREF-TRACE level.

Connector "TRACE B"

The second connector is not used.

 

Pin Out Offload and CoreSight TPIU



Connector "TRACE A"
Signal

Pin

 Pin

Signal

    
N/C12N/C
N/C34N/C
GND56TRACECLK
DBGRQ78DBGACK
RESET-910EXTRIG
TDO1112VREF-TRACE
RTCK1314VREF-DEBUG
TCK|TCKC|SWCLK1516TRACEDATA7
TMS|TMSC|SWDIO1718TRACEDATA6
TDI1920TRACEDATA5
TRST-2122TRACEDATA4
TRACEDATA152324TRACEDATA3
TRACEDATA142526TRACEDATA2
TRACEDATA132728TRACEDATA1
TRACEDATA122930GND
TRACEDATA113132GND
TRACEDATA103334VCC
TRACEDATA93536TRACECTL
TRACEDATA83738TRACEDATA0
    
Connect Pin 39,40,41,42,43 to GND


VCC needs to have VREF-TRACE level.

Connector "TRACE B" (only needed if more than 16 data bit)
Signal

Pin

 Pin

Signal

    
N/C12N/C
N/C34N/C
GND56N/C
N/C78N/C
N/C910N/C
N/C1112N/C
N/C1314N/C
N/C1516TRACEDATA23
N/C1718TRACEDATA22
N/C1920TRACEDATA21
N/C2122TRACEDATA20
TRACEDATA312324TRACEDATA19
TRACEDATA302526TRACEDATA18
TRACEDATA292728TRACEDATA17
TRACEDATA282930GND
TRACEDATA273132GND
TRACEDATA263334VCC
TRACEDATA253536GND
TRACEDATA243738TRACEDATA16
    
Connect Pin 39,40,41,42,43 to GND


VCC needs to have VREF-TRACE level.





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Last generated/modified: 13-May-2020