iSystem C6000 BlueBox, Руководство пользователя, Страница: 18 / 28

Signal
Direction
Signal
Description
Signal Pin Pin Signal
Signal
Description
Signal
Direction
I AGBT TX0_P TX0+ 1 2 Vref
Reference
Voltage
I
I AGBT TX0_N TX0- 3 4 TCK JTAG O
Ground GND 5 6 TMS JTAG O
AGBT TX_P1 7 8 TDI JTAG O
AGBT TX_N1 9 10 TDO JTAG I
Ground GND 11 12 JCOMP
JTAG TRST
(optional)
O
AGBT TX_P2 13 14 NC Not Connected
AGBT TX_N2 15 16 EVTI0
Nexus Event
Input
O (not used)
Ground GND 17 18 ~EVTO0
Nexus Event
Output
I
AGBT TX_P3 19 20 nPORST
Power On
Reset
O
AGBT TX_N3 21 22 nRESET Reset IO
Ground GND 23 24 GND Ground
Not Connected 25 26 AGBT CLK_P AGBT Clock O
Not Connected NC 27 28 AGBT CLK_N AGBT Clock O
Ground GND 29 30 GND Ground
Not Connected NC 31 32 NC Not Connected
Not Connected NC 33 34 NC Not Connected
34-pin ERF8 MPC57xx / SPC57 target pinout
Blue colored signals are Aurora trace signals.
The JCOMP is an optional pin. Some microcontrollers don’t have this pin. Internally, this is
actually the JTAG TRST which resets the JTAG TAP state machine. Because the JTAG TAP
state machine can be reset also by the TMS and the TCK, this pin is optional also for the
debugger. If the microcontroller has the JCOMP pin but it is not connected to the target debug
connector, it must be set to the non-active state in the target via a pull-up resistor. If not then
the JTAG TAP state machine remains in reset and debugging is not possible.
NXP MPC5xxx and ST SPC5 target can also feature a standard 14-pin 2.54mm JTAG target
debug connector exposing only the debug interface without the Aurora interface. The iC6000
unit can be used to connect to these targets through a small adapter connecting at the end of
the 34-pin High-speed Aurora cable.