S9S12P64J0CFT Freescale Semiconductor, S9S12P64J0CFT Datasheet - Page 163
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S9S12P64J0CFT
Manufacturer Part Number
S9S12P64J0CFT
Description
16-bit Microcontrollers - MCU 16-bit 64K Flash
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12P64VQK.pdf
(566 pages)
Specifications of S9S12P64J0CFT
Rohs
yes
Core
S12
Processor Series
MC9S12P
Data Bus Width
16 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
64 KB
Data Ram Size
4 KB
On-chip Adc
Yes
Operating Supply Voltage
3.15 V to 5.5 V
Operating Temperature Range
- 40 C to + 125 C
Package / Case
QFN-48
Mounting Style
SMD/SMT
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6.3.2.5
Read: Only when unlocked AND unsecured AND not armed AND TSOURCE set.
Write: Aligned word writes when disarmed unlock the trace buffer for reading but do not affect trace buffer
contents.
6.3.2.6
Read: Anytime
Write: Never
Freescale Semiconductor
Address: 0x0024, 0x0025
Address: 0x0026
Resets
Bit[15:0]
Other
Reset
POR
Field
15–0
POR
1. Currently defaults to Comparator A, Comparator B disabled
W
W
R
R
ABCM
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9
11
—
15
X
Trace Buffer Data Bits — The Trace Buffer Register is a window through which the 20-bit wide data lines of the
Trace Buffer may be read 16 bits at a time. Each valid read of DBGTB increments an internal trace buffer pointer
which points to the next address to be read. When the ARM bit is set the trace buffer is locked to prevent reading.
The trace buffer can only be unlocked for reading by writing to DBGTB with an aligned word write when the
module is disarmed. The DBGTB register can be read only as an aligned word, any byte reads or misaligned
access of these registers return 0 and do not cause the trace buffer pointer to increment to the next trace buffer
address. Similarly reads while the debugger is armed or with the TSOURCE bit clear, return 0 and do not affect
the trace buffer pointer. The POR state is undefined. Other resets do not affect the trace buffer contents.
TBF
Debug Trace Buffer Register (DBGTBH:DBGTBL)
Debug Count Register (DBGCNT)
—
0
7
—
14
X
= Unimplemented or Reserved
13
—
X
—
0
0
6
Figure 6-7. Debug Trace Buffer Register (DBGTB)
—
12
X
Figure 6-8. Debug Count Register (DBGCNT)
Table 6-11. DBGTB Field Descriptions
S12P-Family Reference Manual, Rev. 1.13
—
11
X
—
0
5
Table 6-10. ABCM Encoding
—
10
X
—
X
9
—
0
4
Bit 8
—
Description
X
Reserved
8
Description
Bit 7
—
X
7
(1)
—
0
3
Bit 6
—
X
6
CNT
Bit 5
—
X
5
—
0
2
Bit 4
—
X
4
S12S Debug Module (S12SDBGV2)
Bit 3
—
X
3
—
0
1
Bit 2
—
X
2
Bit 1
—
X
1
—
0
0
Bit 0
—
X
0
163
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