MPC8544COMEDEV Freescale Semiconductor, MPC8544COMEDEV Datasheet - Page 1254

• Manufacturer Part Number: MPC8544COMEDEV
• Description: KIT DEV EXPRESS MPC8544COM
• Manufacturer: Freescale Semiconductor
• Type: MPUr

Specifications of MPC8544COMEDEV

• Contents: Board
• For Use With/related Products: MPC8544
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Debug Features and Watchpoint Facility
21.3.3.2
The current context ID register (CCIDR) shown in
register is written by software after a context switch and can be used to trigger events when compared with
the programmed context ID register (PCIDR).
Table 21-24
21.3.4
TRIG_OUT provides a convenient mechanism for triggering external system monitors and diagnostic
equipment such as logic analyzers. Note that READY is multiplexed with TRIG_OUT. See the last
paragraph of
functionality.
When the trace buffer hit is selected by TOSR[SEL], TRIG_OUT is only meaningful if the trace buffer
control register 0 (TBCR0) is properly configured to hit on a traceable event. The same holds true for the
watchpoint monitor when the watchpoint monitor is selected by TOSR[SEL].
21.3.4.1
The trigger out source register (TOSR) shown in
three event-trigger sources are the following:
21-24
0–31
Bits
Offset 0x0A4
Offset 0x0B0
Reset
Reset
•
•
•
W
W
R
R
The watchpoint monitor
The trace buffer
The performance monitor
Name
CCID
0
0
Trigger Out Function
describes the CCIDR field.
Section 4.4.2, “Power-On Reset Sequence,”
Current Context ID Register (CCIDR)
Trigger Out Source Register (TOSR)
MPC8544E PowerQUICC III Integrated Host Processor Family Reference Manual, Rev. 1
—
Current context ID. Set by user software. Typically loaded immediately following a context switch. Compared
with user-programmed context ID for context-sensitive event triggering
4
5
SEL
Figure 21-18. Current Context ID Register (CCIDR)
Figure 21-19. Trigger Out Source Register (TOSR)
7
8
Table 21-24. CCIDR Field Descriptions
Figure 21-19
Figure 21-18
All zeros
All zeros
CCID
Description
for more information about READY
specifies the source for TRIG_OUT. The
contains the current context ID. This
—
Freescale Semiconductor
Access: Read/Write
Access: Read/Write
31
31