MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2280

• 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
38.5.4 LRADC Control Register 3 (HW_LRADC_CTRL3)
The LRADC touch panel control register specifies the voltages at which a touch detect
interrupt is generated.
HW_LRADC_CTRL3: 0x030
HW_LRADC_CTRL3_SET: 0x034
HW_LRADC_CTRL3_CLR: 0x038
HW_LRADC_CTRL3_TOG: 0x03C
The LRADC touch detect control and status register controls the voltage at which a touch
detection interrupt is generated. This register also contains the interrupt request status bit
and enable bit for the touch detection interrupt request to the CPU's IRQ interrupt input.
EXAMPLE
BW_LRADC_CTRL3_HIGH_TIME(BV_LRADC_CTRL3_HIGH_TIME__83NS);
BW_LRADC_CTRL3_INVERT_CLOCK(BV_LRADC_CTRL3_INVERT_CLOCK__NORMAL);
2280
Field
0xD
0xC
0xB
0xA
0x9
0x8
0x7
0x6
0x5
0x4
0x3
0x2
0x1
0x0
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
260 — 260uA.
240 — 240uA.
220 — 220uA.
200 — 200uA.
180 — 180uA.
160 — 160uA.
140 — 140uA.
120 — 120uA.
100 — 100uA.
80 — 80uA.
60 — 60uA.
40 — 40uA.
20 — 20uA.
ZERO — 0uA.
HW_LRADC_CTRL2 field descriptions (continued)
Description
Freescale Semiconductor, Inc.