MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 522
MCIMX281AVM4B
Manufacturer Part Number
MCIMX281AVM4B
Description
IC MPU I.MX28 1.2 289MAPBGA
Manufacturer
Freescale Semiconductor
Series
i.MX28r
Datasheets
1.MCIMX283DVM4B.pdf
(2327 pages)
2.MCIMX283DVM4B.pdf
(20 pages)
3.MCIMX281AVM4B.pdf
(72 pages)
Specifications of MCIMX281AVM4B
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
Supplier Unconfirmed
- Current page: 522 of 2327
- Download datasheet (17Mb)
Programmable Registers
7.5.6 APBX DMA Channel 0 Current Command Address Register
The APBX DMA Channel 0 current command address register points to the multiword
command that is currently being executed. Commands are threaded on the command address.
APBX DMA Channel 0 is controlled by a variable sized command structure. This register
points to the command structure currently being executed.
EXAMPLE
pCurCmd = (hw_apbx_chn_cmd_t *) HW_APBX_CHn_CURCMDAR_RD(0);
register, since there is only one field
pCurCmd = (hw_apbx_chn_cmd_t *) BF_RDn(APBX_CHn_CURCMDAR, 0, CMD_ADDR);
multi-register bitfield read macro
pCurCmd = (hw_apbx_chn_cmd_t *) HW_APBX_CHn_CURCMDAR(0).CMD_ADDR;
bitfield of indexed register's struct
Address:
Re-
522
set
Bit
W
R
CMD_ADDR
31
0
11 10
Field
Field
31 0
CH5
CH4
CH3
CH2
CH1
CH0
9 8
7 6
5 4
3 2
1 0
30
0
(HW_APBX_CH0_CURCMDAR)
29
0
HW_APBX_CH0_CURCMDAR
28
0
Reserved.
Reserved.
Reserved.
Reserved.
Reserved.
Reserved.
Pointer to command structure currently being processed for channel 0.
27
0
26
0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
HW_APBX_DEVSEL field descriptions (continued)
25
0
HW_APBX_CH0_CURCMDAR field descriptions
24
0
23
0
22
0
21
0
20
0
8002_4000h base + 100h offset = 8002_4100h
19
0
18
0
17
CMD_ADDR
0
16
0
15
0
Description
Description
14
0
13
0
12
0
11
0
10
0
0
9
0
8
Freescale Semiconductor, Inc.
0
7
// read the whole
// or, use
// or, assign from
0
6
0
5
0
4
3
0
0
2
0
1
0
0
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