MC9S08DZ128CLF Freescale Semiconductor, MC9S08DZ128CLF Datasheet - Page 185
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MC9S08DZ128CLF
Manufacturer Part Number
MC9S08DZ128CLF
Description
MCU 8BIT 128K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Datasheets
1.MC9S08DV96CLF.pdf
(458 pages)
2.MC9S08DV96CLF.pdf
(4 pages)
3.MC9S08DZ128CLF.pdf
(4 pages)
4.MC9S08DZ96MLL.pdf
(4 pages)
Specifications of MC9S08DZ128CLF
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, I²C, LIN, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 16x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
Package
48LQFP
Family Name
HCS08
Maximum Speed
40 MHz
Operating Supply Voltage
3.3|5 V
Data Bus Width
8 Bit
Number Of Programmable I/os
87
Interface Type
CAN/I2C/SPI/UART
On-chip Adc
24-chx12-bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08DZ128CLF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- MC9S08DV96CLF PDF datasheet
- MC9S08DV96CLF PDF datasheet #2
- MC9S08DZ128CLF PDF datasheet #3
- MC9S08DZ96MLL PDF datasheet #4
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- Download datasheet (5Mb)
8.5
This section describes how to initialize and configure the MCG module in application. The following
sections include examples on how to initialize the MCG and properly switch between the various available
modes.
8.5.1
The MCG comes out of reset configured for FEI mode with the BDIV set for divide-by-2. The internal
reference will stabilize in t
reference is stable, the FLL will acquire lock in t
8.5.1.1
Because the MCG comes out of reset in FEI mode, the only MCG modes which can be directly switched
to upon reset are FEE, FBE, and FBI modes (see
first configuring the MCG for one of these three initial modes. Care must be taken to check relevant status
bits in the MCGSC register reflecting all configuration changes within each mode.
To change from FEI mode to FEE or FBE modes, follow this procedure:
Freescale Semiconductor
1. Enable the external clock source by setting the appropriate bits in MCGC2.
2. If the RANGE bit (bit 5) in MCGC2 is set, set DIV32 in MCGC3 to allow access to the proper
3. Write to MCGC1 to select the clock mode.
4. Once the proper configuration bits have been set, wait for the affected bits in the MCGSC register
RDIV values.
— If entering FEE mode, set RDIV appropriately, clear the IREFS bit to switch to the external
— If entering FBE, clear the IREFS bit to switch to the external reference and change the CLKS
— The internal reference can optionally be kept running by setting the IRCLKEN bit. This is
to be changed appropriately, reflecting that the MCG has moved into the proper mode.
Initialization / Application Information
reference, and leave the CLKS bits at %00 so that the output of the FLL is selected as the
system clock source.
bits to %10 so that the external reference clock is selected as the system clock source. The
RDIV bits should also be set appropriately here according to the external reference frequency
because although the FLL is bypassed, it is still on in FBE mode.
useful if the application will switch back and forth between internal and external modes. For
minimum power consumption, leave the internal reference disabled while in an external clock
mode.
MCG Module Initialization Sequence
Initializing the MCG
If the internal reference is not already trimmed, the BDIV value should not
be changed to divide-by-1 without first trimming the internal reference.
Failure to do so could result in the MCU running out of specification.
irefst
microseconds before the FLL can acquire lock. As soon as the internal
MC9S08DZ128 Series Data Sheet, Rev. 1
fll_acquire
NOTE
Figure
8-9). Reaching any of the other modes requires
milliseconds.
Chapter 8 Multi-Purpose Clock Generator (S08MCGV2)
185
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