S912XEP768J5MAGR Freescale Semiconductor, S912XEP768J5MAGR Datasheet - Page 332
S912XEP768J5MAGR
Manufacturer Part Number
S912XEP768J5MAGR
Description
16-bit Microcontrollers - MCU 16-bit 768K Flash
Manufacturer
Freescale Semiconductor
Datasheet
1.S912XEG128J2MAL.pdf
(1324 pages)
Specifications of S912XEP768J5MAGR
Rohs
yes
Core
HCS12X
Processor Series
MC9S12
Data Bus Width
16 bit
Maximum Clock Frequency
50 MHz
Program Memory Size
768 KB
Data Ram Size
48 KB
On-chip Adc
Yes
Operating Supply Voltage
3.3 V to 5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
LQFP-144
Mounting Style
SMD/SMT
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
S912XEP768J5MAGR
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Freescale Semiconductor
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10 000
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Chapter 8 S12X Debug (S12XDBGV3) Module
this triggers the state sequencer into the Final State, if configured for end alignment, setting the TRIG bit
disarms the module, ending the session. If breakpoints are enabled, a forced breakpoint request is issued
immediately (end alignment) or when tracing has completed (begin or mid alignment).
8.4.3.6
In case of simultaneous triggers, the priority is resolved according to
is suppressed. It is thus possible to miss a lower priority trigger if it occurs simultaneously with a trigger
of a higher priority. The trigger priorities described in
matches, the match on the lower channel number (0,1,2,3) has priority. The SC[3:0] encoding ensures that
a match leading to final state has priority over all other matches in each state sequencer state. When
configured for range modes a simultaneous match of comparators A and C generates an active match0
whilst match2 is suppressed.
If a write access to DBGC1 with the ARM bit position set occurs simultaneously to a hardware disarm
from an internal trigger event, then the ARM bit is cleared due to the hardware disarm.
8.4.4
The state sequencer allows a defined sequence of events to provide a trigger point for tracing of data in the
trace buffer. Once the S12XDBG module has been armed by setting the ARM bit in the DBGC1 register,
332
Highest
Priority
Lowest
State Sequence Control
Trigger Priorities
(Disarmed)
Match0 (force or tag hit)
Match1 (force or tag hit)
Match2 (force or tag hit)
Match3 (force or tag hit)
State 0
ARM = 0
External TAGHI/TAGLO
XGATE BKP
Source
ARM = 0
TRIG
Session Complete
MC9S12XE-Family Reference Manual Rev. 1.25
(Disarm)
ARM = 1
ARM = 0
Figure 8-22. State Sequencer Diagram
Table 8-42. Trigger Priorities
Trigger immediately to final state (begin or mid aligned tracing enabled)
Immediate forced breakpoint......(Tracing terminated immediately).
Trigger immediately to state 0 (end aligned or no tracing enabled)
Final State
Trigger to next state as defined by state control registers
Trigger to next state as defined by state control registers
Trigger to next state as defined by state control registers
Trigger to next state as defined by state control registers
Table 8-42
State1
dictate that in the case of simultaneous
Table
Enter State0
State3
Action
8-42. The lower priority trigger
State2
Freescale Semiconductor
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