MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2255
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
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Freescale Semiconductor, Inc.
Reset
ADC_CHANNEL_
ADJHEADROOM
POWER_DOWN
SAH_GAIN_ADJ
SAH_BIAS_ADJ
ADJCURRENT
PRECHARGE
Bit
ADC_SH_
W
ONCHIP_
GROUND
R
RSRVD1
BYPASS
31 14
12 10
DAC_
DAC_
ADC_
Field
SEL
7 6
3 1
13
9
8
5
4
0
15
RSRVD1
0
[15:14]
14
0
Reserved.
Power down the analog ADC block.
Control the gain of sample and hold module in HSADC.
Adjust the headroom of current sources of sub-DAC.
Adjust the current of sub-DAC.
Adjusting the settling time of the sample-ana-hold circuit in front of the hsadc.
Switch the ground of sub-DAC between quiet ground and onchip ground.
ADC sample and hold logics bypass.
This bit field specifies the pin names of the analog source to be converted.
000= When set to 3'b000,the HSADC select the LRADC0 pin as analog source input.
001= When set to 3'b001,the HSADC select the LRADC1 pin as analog source input.
010= When set to 3'b010,the HSADC select the LRADC2 pin as analog source input.
011= When set to 3'b011,the HSADC select the LRADC3 pin as analog source input.
100= When set to 3'b100,the HSADC select the LRADC4 pin as analog source input.
101= When set to 3'b101,the HSADC select the LRADC5 pin as analog source input.
110= When set to 3'b110,the HSADC select the LRADC6 pin as analog source input.
111= When set to 3'b111,the HSADC select the HSADC0 pin as analog source input.
ADC precharge enable.Should be set before start ADC conversion.
13
1
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
SAH_GAIN_ADJ
12
0
HW_HSADC_CTRL2 field descriptions
11
0
10
0
1
9
1
8
Description
SAH_BIAS_
1
7
ADJ
0
6
5
0
Chapter 37 High-Speed ADC (HSADC)
4
0
ADC_CHANNEL_
1
3
SEL
1
2
1
1
2255
0
0
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