MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 575
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MCIMX286CVM4B
Manufacturer Part Number
MCIMX286CVM4B
Description
IC MPU I.MX286 289MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX28r
Datasheets
1.MCIMX283DVM4B.pdf
(70 pages)
2.MCIMX283DVM4B.pdf
(2 pages)
3.MCIMX283DVM4B.pdf
(2327 pages)
4.MCIMX283DVM4B.pdf
(20 pages)
Specifications of MCIMX286CVM4B
Core Processor
ARM9
Core Size
32-Bit
Speed
454MHz
Connectivity
CAN, EBI/EMI, Ethernet, I²C, MMC, SmartCard, SPI, SSI, UART/USART, USB OTG
Peripherals
DMA, I²S, LCD, POR, PWM, WDT
Program Memory Size
128KB (32K x 32)
Program Memory Type
Mask ROM
Ram Size
32K x 32
Voltage - Supply (vcc/vdd)
1.25 V ~ 5.25 V
Data Converters
A/D 17x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
289-LFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of I /o
-
Eeprom Size
-
Lead Free Status / Rohs Status
Compliant
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7.5.58 APBX DMA Channel 7 Buffer Address Register
The APBX DMA Channel 7 buffer address register contains a pointer to the data buffer for
the transfer. For immediate forms, the data is taken from this register. This is a byte address
which means transfers can start on any byte boundary.
Freescale Semiconductor, Inc.
HALTONTERMINATE
TERMINATEFLUSH
WAIT4ENDCMD
IRQONCMPLT
SEMAPHORE
COMMAND
RSVD1
RSVD0
CHAIN
11 10
Field
5 4
1 0
9
8
7
6
3
2
(HW_APBX_CH7_BAR)
HW_APBX_CH7_CMD field descriptions (continued)
Reserved, always set to zero.
A value of one indicates that the channel will flush out any remainder data in DMA FIFO when
termination occurs. Only appliese for write DMA operation.
A value of one indicates that the channel will immeditately terminate the current descriptor and halt
the DMA channel if a terminate signal is set. A value of 0 will still cause an immediate terminate of
the channel if the terminate signal is set, but the channel will continue as if the count had been
exhausted, meaning it will honor IRQONCMPLT, CHAIN, SEMAPHORE, and WAIT4ENDCMD.
A value of one indicates that the channel will wait for the end of command signal to be sent from the
APBX device to the DMA before starting the next DMA command.
A value of one indicates that the channel will decrement its semaphore at the completion of the current
command structure. If the semaphore decrements to zero, then this channel stalls until software
increments it again.
Reserved, always set to zero.
A value of one indicates that the channel will cause its interrupt status bit to be set upon completion
of the current command, i.e. after the DMA transfer is complete.
A value of one indicates that another command is chained onto the end of the current command
structure. At the completion of the current command, this channel will follow the pointer in
HW_APBX_CH7_CMDAR to find the next command.
This bitfield indicates the type of current command:
00- NO DMA TRANSFER
01- write transfers, i.e. data sent from the APBX device (APB PIO Read) to the system memory (AHB
master write).
10- read transfer
11- reserved
0x0
0x1
0x2
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
NO_DMA_XFER — Perform any requested PIO word transfers but terminate command before
any DMA transfer.
DMA_WRITE — Perform any requested PIO word transfers and then perform a DMA transfer
from the peripheral for the specified number of bytes.
DMA_READ — Perform any requested PIO word transfers and then perform a DMA transfer
to the peripheral for the specified number of bytes.
Chapter 7 AHB-to-APBX Bridge with DMA (APBX-Bridge-DMA)
Description
575
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