MC9S08GT16CFB Freescale Semiconductor, MC9S08GT16CFB Datasheet - Page 257

MC9S08GT16CFB

Manufacturer Part Number
MC9S08GT16CFB
Description
Manufacturer
Freescale Semiconductor
Datasheet

Specifications of MC9S08GT16CFB

Cpu Family
HCS08
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
SCI/SPI
Program Memory Type
Flash
Program Memory Size
16KB
Total Internal Ram Size
1KB
# I/os (max)
36
Number Of Timers - General Purpose
4
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
2.08V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
44
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant

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ARMF — Arm Flag
CNT3:CNT2:CNT1:CNT0 — FIFO Valid Count
Freescale Semiconductor
While DBGEN = 1, this status bit is a read-only image of the ARM bit in DBGC. This bit is set by
writing 1 to the ARM control bit in DBGC (while DBGEN = 1) and is automatically cleared at the end
of a debug run. A debug run is completed when the FIFO is full (begin trace) or when a trigger event
is detected (end trace). A debug run can also be ended manually by writing 0 to the ARM or DBGEN
bits in DBGC.
These bits are cleared at the start of a debug run and indicate the number of words of valid data in the
FIFO at the end of a debug run. The value in CNT does not decrement as data is read out of the FIFO.
The external debug host is responsible for keeping track of the count as information is read out of the
FIFO.
1 = Debugger armed.
0 = Debugger not armed.
CNT[3:0]
0000
0001
0010
0011
0100
0101
0110
0111
1000
MC9S08GB/GT Data Sheet, Rev. 2.3
Table 15-3. CNT Status Bits
Valid Words in FIFO
No valid data
1
2
3
4
5
6
7
8
Registers and Control Bits
257

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