MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 2270

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• 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: Compliant

Behavior During Reset
2270
TOUCH_DETECT_ENABLE
YNLRSW
YPLLSW<1:0>
XNURSW<1:0>
XPULSW
SW0 Status
SW1 Status
SW2 Status
SW3 Status
SW4 Status
SW5 Status
SW6 Status
SW7 Status
Figure 38-3. Using Delay Channels to Oversample a Touch-Screen
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
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Delay Channel 1 oversample intervals:
1. Times out.
2. Kicks LRADC4 (X+ sample).
3. Repeats 3 more times.
Delay Channel 0 (touch-screen settling time):
1. Times out.
2. Kicks Delay Channel 1.
Touch-screen ISR:
1. Sets Y+,Y- drive and clears LRADC4 ACC.
2. Set Delay Channel 1 for LRADC4.
3. Kicks Delay Channel 0.
4. Return from interrupt.
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Final Conversion sets IRQ.
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Freescale Semiconductor, Inc.
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