MC9S08GT16CFB Freescale Semiconductor, MC9S08GT16CFB Datasheet - Page 119

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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Freescale Semiconductor
OSCSTEN — Enable Oscillator in Off Mode
7.5.2
LOLRE — Loss of Lock Reset Enable
MFD — Multiplication Factor
The OSCSTEN bit controls whether or not the oscillator circuit remains enabled when the ICG enters
off mode.
The LOLRE bit determines what type of request is made by the ICG following a loss of lock indication.
The LOLRE bit only has an effect when LOLS is set.
The MFD bits control the programmable multiplication factor in the FLL loop. The value specified by
the MFD bits establishes the multiplication factor (N) applied to the reference frequency. Writes to the
MFD bits will not take effect if a previous write is not complete. Select a low enough value for N such
that f
1 = Oscillator enabled when ICG is in off mode, CLKS = 1X and REFST = 1.
0 = Oscillator disabled when ICG is in off mode unless ENABLE is high, CLKS = 10, and
1 = Generate a reset request on loss of lock.
0 = Generate an interrupt request on loss of lock.
ICGDCLK
REFST = 1.
ICG Control Register 2 (ICGC2)
does not exceed its maximum specified value.
Reset:
Read:
Write:
LOLRE
Bit 7
0
Figure 7-14. ICG Control Register 2 (ICGC2)
Table 7-7. MFD Multiplication Factor Select
MFD Value
MC9S08GB/GT Data Sheet, Rev. 2.3
000
001
010
011
100
101
110
111
6
0
MFD
Multiplication Factor (N)
5
0
4
0
10
12
14
16
18
4
6
8
LOCRE
3
0
2
0
ICG Registers and Control Bits
RFD
1
0
Bit 0
0
119

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