|
Adaption for MPC5XXX/SPC5XXX OnCE Debug Connector |
Products
Connector 14 pin
|
Signal
| Pin
| | Pin
| Signal
|
| | |  | | |
| TDI | 1 |  | 2 | GND |
| TDO | 3 |  | 4 | GND |
| TCK | 5 |  | 6 | GND |
| N/C | 7 |  | 8 | N/C |
| RESET- | 9 |  | 10 | TMS |
| VDD TARGET | 11 |  | 12 | GND |
| (RDY-) | 13 |  | 14 | (JCOMP-) |
| | |  | | |
Dimension
Connector Type
- This is a standard 14 pin double row (two rows of seven pins) connector (pin to pin spacing: 2.54mm/0.100").
- If terminal strip without shroud is used, the spacing marked with "A" must be a minimum of 23mm/0.9".
JTAG connector recommendations
- TDI, TDO, TCK, TMS and JCOMP- should be connected directly to the CPU. Don't connect serial resistors or RC terminations to those signals.
- Avoid routing the JTAG signals close to the NEXUS signals.
- Connect VDD to the voltage which also supplies the processor's JTAG signals (esp. TDO). VDD can be connected directly to the target's power supply, or optional with a resistor < 5kOhm
- The RDY- signal (pin 13) is optional.
If the signal is not available, or can not be connected because of other reasons, the RDY- pin on the debug connector should be connected to GND.
If the RDY- signal on the debug connector is not connected, set SYStem.Option.NOJTAGRDY ON.
- If the signal JCOMP (pin 14) is not available on the used processor/package type, leave the JCOMP pin on the debug connector unconnected.
- We recommend to follow
Freescale's Application Note AN2614.
Debug Cable Information
- When the debugger is inactive (SYStem.Mode.DOWN and NoDebug), all output pins of the debug cable are tri-stated (hot-plug capability)
- During the debug session: TDI, TCK, TMS and JCOMP- are driven to both low and high levels. Only RESET is an open-drain output. The voltage level of a pin driven to high is the same soltage level as connected to VDD target (pin 11).
- All output signals of the debug cable have a 47 Ohm serial termination. Usually no further termination is needed on the target hardware.
- Maximum supported voltage range (check debug cable's serial number CYYMMxxxxxx):
- Debug cable produced before 09/2009: 1.8-5.5V
- Debug cable produced 09/2009 or later: 0.9-5.5V
- Input impedance on VDD target (pin 11):
- Debug cable produced before 09/2009: >45 kOhm
- Debug cable produced 09/2009 or later: >90 kOhm
- IEEE 1149.7 (aka cJTAG) supported by debug cables produced 09/2009 or later.
|
Half-Size Adapters |
- 100 mil to 50 mil Adapters
- Small Footprint for Target Connector
|
|