TC1775 Datasheet, PDF (61/101 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1775
Preliminary
On-Chip Debug Support
The On-Chip Debug Support of the TC1775 consists of four building blocks:
• OCDS module in the TriCore CPU
– On-chip breakpoint hardware
– Support of an external break signal
• OCDS module in the PCP
– Special DEBUG instruction for program execution tracing
• Trace module of the TriCore
– Outputs 16 bits per cycle with pipeline status information, PC bus information, and
breakpoint qualification information
• Debugger Interface (Cerberus)
– Provided for debug purposes of emulation tool vendors
– Accessible through a JTAG standard interface with dedicated JTAG port pins
Figure 17 shows a basic block diagram of the building blocks.
FPI Bus
PCP
TriCore
CPU
OCDS
SCU
Trace
C o n tro l
16
Cerberus &
JTAG
Figure 17 OCDS Support Basic Block Diagram
Data Sheet
57
B R K IN
BRKOUT
T R A C E [1 5 :0 ]
OCDSE
TDI
TDO
TMS
TCK
TRST
JTAG
I/O Lines
M C B04810
V1.2, 2002-05