MC9S08DV16ACLF Freescale Semiconductor, MC9S08DV16ACLF Datasheet - Page 153
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MC9S08DV16ACLF
Manufacturer Part Number
MC9S08DV16ACLF
Description
IC MCU 16K FLASH 1K RAM 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Specifications of MC9S08DV16ACLF
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
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K 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
Processor Series
S08DV
Core
HCS08
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
CAN, I2C, SCI, SPI
Number Of Programmable I/os
40
Operating Supply Voltage
5.5 V
Mounting Style
SMD/SMT
3rd Party Development Tools
EWS08
Development Tools By Supplier
DEMO9S08DZ60
On-chip Adc
12 bit, 16 channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC9S08DV16ACLF
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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2. Then, FBE must transition either directly to PBE mode or first through BLPE mode and then to
3. Last, PBE mode transitions into PEE mode:
c) MCGC1 = 0xB8 (%10111000)
d) Loop until IREFST (bit 4) in MCGSC is 0, indicating the external reference is the current
e) Loop until CLKST (bits 3 and 2) in MCGSC are %10, indicating that the external reference
PBE mode:
a) BLPE: If a transition through BLPE mode is desired, first set LP (bit 3) in MCGC2 to 1.
b) BLPE/PBE: MCGC1 = 0x90 (%10010000)
c) BLPE/PBE: MCGC3 = 0x44 (%01000100)
d) BLPE: If transitioning through BLPE mode, clear LP (bit 3) in MCGC2 to 0 here to switch to
e) PBE: Loop until PLLST (bit 5) in MCGSC is set, indicating that the current source for the
f) PBE: Then loop until LOCK (bit 6) in MCGSC is set, indicating that the PLL has acquired lock
a) MCGC1 = 0x10 (%00010000)
b) Loop until CLKST (bits 3 and 2) in MCGSC are %11, indicating that the PLL output is selected
– CLKS (bits 7 and 6) set to %10 in order to select external reference clock as system clock
– RDIV (bits 5-3) set to %111, or divide-by-128 because 4 MHz / 128 = 31.25 kHz which is
– IREFS (bit 2) cleared to 0, selecting the external reference clock
source for the reference clock
clock is selected to feed MCGOUT
– RDIV (bits 5-3) set to %010, or divide-by-4 because 4 MHz / 4 = 1 MHz which is in the 1
– PLLS (bit 6) set to 1, selects the PLL. In BLPE mode, changing this bit only prepares the
– VDIV (bits 3-0) set to %0100, or multiply-by-16 because 1 MHz reference * 16 = 16 MHz.
PBE mode
PLLS clock is the PLL
– CLKS (bits7 and 6) in MCGSC1 set to %00 in order to select the output of the PLL as the
to feed MCGOUT in the current clock mode
– Now, With an RDIV of divide-by-4, a BDIV of divide-by-1, and a VDIV of multiply-by-16,
source
in the 31.25 kHz to 39.0625 kHz range required by the FLL
MHz to 2 MHz range required by the PLL. In BLPE mode, the configuration of the RDIV
does not matter because both the FLL and PLL are disabled. Changing them only sets up the
the dividers for PLL usage in PBE mode
MCG for PLL usage in PBE mode
In BLPE mode, the configuration of the VDIV bits does not matter because the PLL is
disabled. Changing them only sets up the multiply value for PLL usage in PBE mode
system clock source
MCGOUT = [(4 MHz / 4) * 16] / 1 = 16 MHz, and the bus frequency is MCGOUT / 2, or 8
MHz
MC9S08DV60 Series Data Sheet, Rev 3
Chapter 8 Multi-Purpose Clock Generator (S08MCGV1)
153
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