MCF5281CVM66J Freescale Semiconductor, MCF5281CVM66J Datasheet - Page 179
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MCF5281CVM66J
Manufacturer Part Number
MCF5281CVM66J
Description
IC MPU 256K FLASH 256MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF528xr
Datasheet
1.MCF5216CVM66J.pdf
(766 pages)
Specifications of MCF5281CVM66J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
66MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, SPI, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
150
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
256-MAPBGA
Processor Series
MCF528x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5282-KIT
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:
MCF5281CVM66J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Freescale Semiconductor
Bit(s)
7
6
5
4
3
PLLMODE
PLLREF
PLLSEL
LOCKS
Name
LOCK
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Clock mode bit. The PLLMODE bit is configured at reset and reflects the clock mode
as shown in
1 PLL clock mode
0 External clock mode
PLL select. Configured at reset and reflects the PLL mode as shown in
1 Normal PLL mode
0 1:1 PLL mode
PLL reference. Configured at reset and reflects the PLL reference source in normal
PLL mode as shown in
1 Crystal clock reference
0 External clock reference
Sticky indication of PLL lock status.
1 No unintentional PLL loss of lock since last system reset or MFD change
0 PLL loss of lock since last system reset or MFD change or currently not locked due
The lock detect function sets the LOCKS bit when the PLL achieves lock after:
When the PLL loses lock, LOCKS is cleared. When the PLL relocks, LOCKS remains
cleared until one of the two listed events occurs.
In stop mode, if the PLL is intentionally disabled, then the LOCKS bit reflects the value
prior to entering stop mode. However, if FWKUP is set, then LOCKS is cleared until
the PLL regains lock. Once lock is regained, the LOCKS bit reflects the value prior to
entering stop mode. Furthermore, reading the LOCKS bit at the same time that the
PLL loses lock does not return the current loss of lock condition.
In external clock mode, LOCKS remains cleared after reset. In normal PLL mode and
1:1 PLL mode, LOCKS is set after reset.
Set when the PLL is locked. PLL lock occurs when the synthesized frequency is within
approximately 0.75 percent of the programmed frequency. The PLL loses lock when a
frequency deviation of greater than approximately 1.5 percent occurs. Reading the
LOCK flag at the same time that the PLL loses lock or acquires lock does not return
the current condition of the PLL. The power-on reset circuit uses the LOCK bit as a
condition for releasing reset.
If operating in external clock mode, LOCK remains cleared after reset.
1 PLL locked
0 PLL not locked
• A system reset
• A write to SYNCR that changes the MFD[2:0] bits
to exit from STOP with FWKUP set
Table 9-5. SYNSR Field Descriptions
Table
9-6.
Table
9-6.
Description
Table
9-6.
Clock Module
9-9
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