2.15 JTAG/COP port
The common on-chip processor (COP) is a part of the T2080’s JTAG module and is
implemented as a set of additional instructions and logic. This port can connect to a
dedicated emulator for extensive system debugging. Several third-party emulators in the
market can connect to the host computer through the Ethernet port, USB port, parallel
port, or RS-232. A typical setup using a USB port emulator is shown in the image below.
Figure 2-15. USB port emulator setup
The 16-pin generic header connector carries the COP/JTAG signals and the additional
signals for system debugging. The pin-out of this connector is shown in the image below.
TDO
TDI
NC
TCK
TMS
SRESET_B
HRESET_B
CKSTP_OUT
GND
NC
GND
NC
CKSTP_IN
VDD_SENSE
TRST_B
NC
1
Figure 2-16. 16-pin connector
Chapter 2 Architecture
QorIQ T2080 Reference Design Board (T2080RDB-PC) User Guide, Rev. 0, 04/2016
Freescale Semiconductor, Inc.
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