mc9s12xf512 Freescale Semiconductor, Inc, mc9s12xf512 Datasheet - Page 765
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mc9s12xf512
Manufacturer Part Number
mc9s12xf512
Description
S12x Microcontrollers 16-bit Automotive Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12XF512.pdf
(1306 pages)
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16.3.2.3
Read: Anytime
Write: Bits 7:6 only when S12XDBG is neither secure nor armed.
Freescale Semiconductor
Address: 0x0022
TSOURCE
TRCMOD
TRANGE
TALIGN
Reset
Field
7–6
5–4
3–2
1–0
W
R
Bits 5:0 anytime the module is disarmed.
Trace Source Control Bits — The TSOURCE bits select the data source for the tracing session. If the MCU
system is secured, these bits cannot be set and tracing is inhibited. See
Trace Range Bits — The TRANGE bits allow filtering of trace information from a selected address range when
tracing from the CPU12X in Detail Mode. The XGATE tracing range cannot be narrowed using these bits. To use
a comparator for range filtering, the corresponding COMPE and SRC bits must remain cleared. If the COMPE
bit is not clear then the comparator will also be used to generate state sequence triggers. If the corresponding
SRC bit is set the comparator is mapped to the XGATE buses, the TRANGE bits have no effect on the valid
address range, memory accesses within the whole memory map are traced. See
Trace Mode Bits — See
information is stored. In Loop1 Mode, change of flow information is stored but redundant entries into trace
memory are inhibited. In Detail Mode, address and data for all memory and register accesses is stored. See
Table
Trigger Align Bits — These bits control whether the trigger is aligned to the beginning, end or the middle of a
tracing session. See
Debug Trace Control Register (DBGTCR)
0
7
1. No range limitations are allowed. Thus tracing operates as if TRANGE = 00.
2. No Detail Mode tracing supported. If TRCMOD = 10, no information is stored.
TSOURCE
16-12.
TSOURCE
11
10
00
01
1,(2)
(1)
0
6
Figure 16-5. Debug Trace Control Register (DBGTCR)
Table 16-10. TSOURCE — Trace Source Bit Encoding
Table
MC9S12XF - Family Reference Manual, Rev.1.19
Table 16-9. DBGTCR Field Descriptions
Section 16.4.5.2
16-13.
0
5
TRANGE
for detailed Trace Mode descriptions. In Normal Mode, change of flow
Both CPU12X and XGATE
0
4
No tracing requested
Tracing Source
Description
CPU12X
XGATE
0
3
TRCMOD
Chapter 16 S12X Debug (S12XDBGV3) Module
Table
0
2
16-10.
Table
16-11.
0
1
TALIGN
0
0
765
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