S9S12GN16F0MLF Freescale Semiconductor, S9S12GN16F0MLF Datasheet - Page 317
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S9S12GN16F0MLF
Manufacturer Part Number
S9S12GN16F0MLF
Description
16-bit Microcontrollers - MCU 16-bit16k Flash 2k RAM
Manufacturer
Freescale Semiconductor
Datasheet
1.S9S12GN16F0CFT.pdf
(1292 pages)
Specifications of S9S12GN16F0MLF
Rohs
yes
Core
S12
Processor Series
MC9S12G
Data Bus Width
16 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
16 KB
Data Ram Size
1024 B
On-chip Adc
Yes
Operating Supply Voltage
3.13 V to 5.5 V
Operating Temperature Range
- 40 C to + 85 C
Package / Case
TSSOP-20
Mounting Style
SMD/SMT
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8.3.2.3
Freescale Semiconductor
Address: 0x0021
Address: 0x0022
SSF[2:0]
Reset
Reset
Field
POR
TBF
2–0
7
W
W
R
R
Trace Buffer Full — The TBF bit indicates that the trace buffer has stored 64 or more lines of data since it was
last armed. If this bit is set, then all 64 lines will be valid data, regardless of the value of DBGCNT bits. The TBF
bit is cleared when ARM in DBGC1 is written to a one. The TBF is cleared by the power on reset initialization.
Other system generated resets have no affect on this bit
This bit is also visible at DBGCNT[7]
State Sequencer Flag Bits — The SSF bits indicate in which state the State Sequencer is currently in. During
a debug session on each transition to a new state these bits are updated. If the debug session is ended by
software clearing the ARM bit, then these bits retain their value to reflect the last state of the state sequencer
before disarming. If a debug session is ended by an internal event, then the state sequencer returns to state0
and these bits are cleared to indicate that state0 was entered during the session. On arming the module the state
sequencer enters state1 and these bits are forced to SSF[2:0] = 001. See
TBF
—
Debug Trace Control Register (DBGTCR)
0
0
0
7
7
TSOURCE
Table 8-6. SSF[2:0] — State Sequence Flag Bit Encoding
= Unimplemented or Reserved
0
0
0
0
6
6
Figure 8-5. Debug Trace Control Register (DBGTCR)
101,110,111
Figure 8-4. Debug Status Register (DBGSR)
SSF[2:0]
MC9S12G Family Reference Manual, Rev.1.23
000
001
010
011
100
Table 8-5. DBGSR Field Descriptions
0
0
0
0
0
5
5
0
0
0
0
0
4
4
Description
State0 (disarmed)
Current State
Final State
Reserved
0
0
0
State1
State2
State3
0
3
3
TRCMOD
SSF2
Table 8-6
0
0
0
2
2
S12S Debug Module (S12SDBGV2)
.
SSF1
0
0
0
0
1
1
TALIGN
SSF0
0
0
0
0
0
319
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