MC9S08GT16CFB Freescale Semiconductor, MC9S08GT16CFB Datasheet - Page 113
MC9S08GT16CFB
Manufacturer Part Number
MC9S08GT16CFB
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S08GT16CFB.pdf
(290 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08GT16CFBE
Manufacturer:
FREESCALE
Quantity:
1 831
Company:
Part Number:
MC9S08GT16CFBE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
Part Number:
MC9S08GT16CFBE
Manufacturer:
FREESCALE
Quantity:
20 000
Company:
Part Number:
MC9S08GT16CFBER
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- Current page: 113 of 290
- Download datasheet (2Mb)
7.4.3
In this example, the FLL will be used (in FEE mode) to multiply the external 4 MHz oscillator up to
40-MHz to achieve 20 MHz bus frequency.
After the MCU is released from reset, the ICG is in self-clocked mode (SCM) and supplies approximately
8 MHz on ICGOUT which corresponds to a 4 MHz bus frequency (f
During reset initialization software, the clock scheme will be set to FLL engaged, external (FEE). So
Solving for N / R gives:
The values needed in each register to set up the desired operation are:
ICGC1 = $78 (%01111000)
Freescale Semiconductor
Bit 7
Bit 6
Bit 5
Bits 4:3 CLKS
Bit 2
Bit 1
Bit 0
RESET, STOP1, OR STOP2
FLL LOCK STATUS.
Example #2: External Crystal = 4 MHz, Bus Frequency = 20 MHz
RECOVERY FROM
INITIALIZE ICG
RANGE
REFS
OSCSTEN 0
ICG1 = $38
ICG2 = $00
CONTINUE
LOCK = 1?
CHECK
N / R = 40 MHz /(4 MHz * 1) = 10 ; We can choose N = 10 and R = 1
YES
0
1
1
11
0
0
f
NO
ICGOUT
Figure 7-8. ICG Initialization for FEE in Example #1
Unimplemented or reserved, always reads zero
Configures oscillator for high-frequency range; FLL prescale factor is 1
Requests an oscillator
FLL engaged, external reference clock mode
Disables the oscillator in stop modes
Reserved for Freescale Semiconductor internal use; always write zero
Unimplemented or reserved, always reads zero
= f
QUICK RECOVERY FROM STOP
ext
MC9S08GB/GT Data Sheet, Rev. 2.3
RECOVERY FROM STOP3
* P * N / R ; P = 1, f
FLL LOCK STATUS.
OSCSTEN = 1
CONTINUE
LOCK = 1?
CHECK
YES
NOTE: THIS WILL REQUIRE THE OSCILLATOR TO START AND
STABILIZE. ACTUAL TIME IS DEPENDENT ON CRYSTAL /RESONATOR
AND EXTERNAL CIRCUITRY.
NO
ext
= 4.00 MHz
MINIMUM CURRENT DRAW IN STOP
RECOVERY FROM STOP3
Bus
FLL LOCK STATUS.
OSCSTEN = 0
).
CONTINUE
LOCK = 1?
CHECK
Initialization/Application Information
YES
NO
Eqn. 7-3
Eqn. 7-4
113
Related parts for MC9S08GT16CFB
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet:
Part Number:
Description:
Manufacturer:
Freescale Semiconductor, Inc
Datasheet: