MCF5282CVF80J Freescale Semiconductor, MCF5282CVF80J Datasheet - Page 552
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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
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Queued Analog-to-Digital Converter (QADC)
28.6.5.3 QADC Control Register 2 (QACR2)
QACR2 is the mode control register for queue 2. This register governs queue operating mode and the use
of completion and/or pause interrupts. Typically, these bits are written once when the QADC is initialized
and not changed thereafter.
QACR2 also includes a resume feature that selects the resumption point for queue 2 after its operation is
suspended by a queue 1 trigger event. The primary reason for selecting re-execution of the entire queue or
subqueue is to guarantee that all samples are taken consecutively in one scan (coherency).
When subqueues are not used, queue 2 execution restarts after suspension with the first CCW in queue 2.
When a pause has previously occurred in queue 2 execution, queue execution restarts after suspension with
the first CCW in the current subqueue.
A subqueue is considered to be a stand-alone sequence of conversions. Once a pause flag has been set to
report subqueue completion, that subqueue is not repeated until all CCWs in queue 2 are executed.
For example, the RESUME bit can be used when the frequency of queue 1 trigger events prohibit queue
2 completion. If the rate of queue 1 execution is too high, it is best for queue 2 execution to continue with
the CCW that was being converted when queue 2 was suspended. This allows queue 2 to eventually
complete execution.
The beginning of queue 2 is defined by programming the BQ2 field in QACR2. BQ2 is usually set before
or at the same time as the queue operating mode for queue 2 is selected. If BQ2[6:0] ≥ 64, queue 2 has no
entries, the entire CCW table is dedicated to queue 1, and CCW63 is the end-of-queue 1. If BQ2[6:0] is 0,
the entire CCW table is dedicated to queue 2. A special case occurs when an operating mode is selected
28-14
MQ1[12:8]
10000
10001
10010
10011
10100
10101
10110
10111
11000
11001
11010
11011
11100
11101
11110
11111
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3
Reserved mode
Software-triggered continuous-scan mode
External-trigger rising-edge continuous-scan mode
External-trigger falling-edge continuous-scan mode
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Periodic timer continuous-scan mode: time = QCLK period × 2
Externally gated continuous-scan mode
Table 28-7. Queue 1 Operating Modes (continued)
Operating Mode
7
8
9
10
11
12
13
14
15
16
17
Freescale Semiconductor
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