MC9S08GT60CFD Freescale Semiconductor, MC9S08GT60CFD Datasheet - Page 123
MC9S08GT60CFD
Manufacturer Part Number
MC9S08GT60CFD
Description
MCU 8BIT 60K FLASH 48-QFN
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheet
1.M68EVB908GB60E.pdf
(290 pages)
Specifications of MC9S08GT60CFD
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-QFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
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The filter registers show the filter value (FLT).
FLT — Filter Value
7.5.6
TRIM — ICG Trim Setting
Freescale Semiconductor
The FLT bits indicate the current filter value, which controls the DCO frequency. The FLT bits are
read only except when the CLKS bits are programmed to self-clocked mode (CLKS = 00). In
self-clocked mode, any write to ICGFLTU updates the current 12-bit filter value. Writes to the
ICGFLTU register will not affect FLT if a previous latch sequence is not complete.
The TRIM bits control the internal reference generator frequency. They allow a ± 25% adjustment of
the nominal (POR) period. The bit’s effect on period is binary weighted (i.e., bit 1 will adjust twice as
much as changing bit 0). Increasing the binary value in TRIM will increase the period and decreasing
the value will decrease the period.
ICG Trim Register (ICGTRM)
Reset:
Reset:
Read:
Write:
Read:
Write:
POR:
U = Unaffected by MCU reset
Figure 7-18. ICG Lower Filter Register (ICGFLTL)
Bit 7
U
1
7
1
Figure 7-19. ICG Trim Register (ICGTRM)
MC9S08GB/GT Data Sheet, Rev. 2.3
U
6
1
6
0
U
5
0
5
0
U
4
0
4
0
TRIM
FLT
U
3
0
3
0
U
2
0
2
0
ICG Registers and Control Bits
U
1
0
1
0
Bit 0
U
0
0
0
123
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