MCF5282CVF80J Freescale Semiconductor, MCF5282CVF80J Datasheet - Page 207
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MCF5282CVF80J
Manufacturer Part Number
MCF5282CVF80J
Description
IC MPU 512K FLASH 256MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF528xr
Datasheet
1.MCF5216CVM66J.pdf
(766 pages)
Specifications of MCF5282CVF80J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
80MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, SPI, UART/USART
Peripherals
DMA, LVD, POR, PWM, WDT
Number Of I /o
150
Program Memory Size
512KB (512K 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
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5282CVF80J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
- Current page: 207 of 766
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service routine, and if there are additional active interrupt sources, the current interrupt service routine
(ISR) passes control to the appropriate service routine, but without taking another interrupt exception.
When the interrupt controller receives a software IACK read, it returns the vector number associated with
the highest level, highest priority unmasked interrupt source for that interrupt controller. The IACKLPR
register is also loaded as the software IACK is performed. If there are no active sources, the interrupt
controller returns an all-zero vector as the operand. For this situation, the IACKLPR register is also
cleared.
In addition to the IACK registers within each interrupt controller, there are global LnIACK registers. A
read from one of the global LnIACK registers returns the vector for the highest priority unmasked interrupt
within a level for all interrupt controllers. There is no global SWIACK register. However, reading the
SWIACK register from each interrupt controller returns the vector number of the highest priority
unmasked request within that controller.
10.4
The interrupt controllers have a fixed priority, where INTC0 has the highest priority, and INTC1 has the
lowest priority. If both interrupt controllers have active interrupts at the same level and priority, then the
INTC0 interrupt will be serviced first. If INTC1 has an active interrupt that has a higher level or priority
than the highest INTC0 interrupt, then the INTC1 interrupt will be serviced first.
10.5
The System Control Module (SCM) contains an 8-bit low-power interrupt control register (LPICR) used
explicitly for controlling the low-power stop mode. This register must explicitly be programmed by
software to enter low-power mode.
Each interrupt controller provides a special combinatorial logic path to provide a special wake-up signal
to exit from the low-power stop mode. This special mode of operation works as follows:
Freescale Semiconductor
•
Bits
7–0
First, LPICR[6:4] is loaded with the mask level that will be specified while the core is in stop mode.
LPICR[7] must be set to enable this mode of operation.
Prioritization Between Interrupt Controllers
Low-Power Wakeup Operation
VECTOR Vector number. A read from the SWIACK register returns the vector number associated with the
Figure 10-10. Software and Level n IACK Registers (SWIACKR, L1IACK–L7IACK)
Name
Address
Reset
Field
R/W
highest level, highest priority unmasked interrupt source. A read from one of the LnACK registers
returns the highest priority unmasked interrupt source within the level.
Table 10-15. SWIACK and L1IACK-L7IACK Field Descriptions
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
7
See
6
Table 10-2
and
0000_0000
4
VECTOR
Table 10-3
Description
R
3
for register offsets
Interrupt Controller Modules
0
10-17
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