MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2284

• Manufacturer Part Number: MCIMX281AVM4B
• Description: IC MPU I.MX28 1.2 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

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

Programmable Registers
38.5.6 LRADC 0 Result Register (HW_LRADC_CH0)
The LRADC result register returns the 12-bit result for low resolution analog to digital
converter channel zero.
HW_LRADC_CH0: 0x050
HW_LRADC_CH0_SET: 0x054
HW_LRADC_CH0_CLR: 0x058
2284
DETECT_RAW
DETECT_RAW
DETECT_RAW
CHANNEL6_
CHANNEL5_
CHANNEL4_
CHANNEL3_
CHANNEL2_
CHANNEL1_
CHANNEL0_
BUTTON1_
BUTTON0_
PRESENT
PRESENT
PRESENT
PRESENT
PRESENT
PRESENT
PRESENT
RSRVD2
TOUCH_
Field
15 3
22
21
20
19
18
17
16
2
1
0
This read-only bit returns a one when the LRADC channel 6 converter function is present on the chip.
This read-only bit returns a one when the LRADC channel 5 converter function is present on the chip.
This read-only bit returns a one when the LRADC channel 4 converter function is present on the chip.
This read-only bit returns a one when the LRADC channel 3 converter function is present on the chip.
This read-only bit returns a one when the LRADC channel 2 converter function is present on the chip.
This read-only bit returns a one when the LRADC channel 1 converter function is present on the chip.
This read-only bit returns a one when the LRADC channel 0 converter function is present on the chip.
Reserved
This read-only bit shows the status of the BUTTON1 Detect Comparator in the analog section.
0x0
0x1
This read-only bit shows the status of the BUTTON0 Detect Comparator in the analog section.
0x0
0x1
This read-only bit shows the status of the Touch Detect Comparator in the analog section.
0x0
0x1
OPEN — No contact, i.e. open connection.
HIT — Someone is clicking the button.
OPEN — No contact, i.e. open connection.
HIT — Someone is clicking some button.
OPEN — No contact, i.e. open connection.
HIT — Someone is touching the panel.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
HW_LRADC_STATUS field descriptions (continued)
Description
Freescale Semiconductor, Inc.