MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2273

• 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

Freescale Semiconductor, Inc.
SCREEN_TYPE
BUTTON1_
BUTTON0_
DETECT_
DETECT_
DETECT_
XNURSW
YNLRSW
XPULSW
TOUCH_
TOUCH_
YPLLSW
ENABLE
ENABLE
ENABLE
20 19
18 17
Field
25
24
23
22
21
16
Set this bit to one to enable button1 detector.
0x0
0x1
Set this bit to one to enable button0 detector.
0x0
0x1
Set this bit to one to enable touch panel touch detector.
0x0
0x1
Touch Screen Type (4/5 wires) Select control.
0x0: 4-wire
0x1: 5-wire
YNLR Switch Control, to enable pull down on the LRADC5 pin.
YNLRSW bit controls the on/off for ynnsw
0x0: YNLR OFF (ynnsw off)
0x1: YNLR LOW (ynnsw on)
YPLL Switch Control, to enable pull up or pull down on the LRADC3 pin.
YPLLSW[1] controls the on/off for ypnsw
YPLLSW[0] controls the on/off for yppsw
0x0: YPLL OFF (ypnsw off, yppsw off)
0x1: YPLL HIGH (ypnsw off, yppsw on)
0x2: YPLL LOW (ypnsw on, yppsw off)
0x3: Reserved
XNUR Switch Control, to enable pull down or pull up on the LRADC4 pin.
XNUR[1] controls the on/off for xnnsw
XNUR[0] controls the on/off for xnpsw
0x0: XNUR OFF (xnnsw off, xnpsw off)
0x1: XNUR HIGH (xnnsw off, xnpsw on)
0x2: XNUR LOW (xnnsw on, xnpsw off)
0x3: Reserved
XPUL Switch Control, to enable pull up on the LRADC2 pin.
XPULSW bit controls the on/off for xppsw
0x0: XPUL OFF (xppsw off)
0x1: XPUL HIGH (xppsw on)
OFF — Turn it off.
ON — Turn it on.
OFF — Turn it off.
ON — Turn it on.
OFF — Turn it off.
ON — Turn it on.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
HW_LRADC_CTRL0 field descriptions (continued)
Chapter 38 Low-Resolution ADC (LRADC) and Touch-Screen Interface
Description
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