MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 981

• 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

Chapter 12 Boot Modes
The FCB contains the page address of DBBT Search Area, and the page address of primary
and secondary boot images. DBBT is searched in DBBT Search Area just like how FCB is
searched. A flowchart for this process is shown in
Figure
12-5. After the FCB is read, the
DBBT is loaded, and the primary or secondary boot image is loaded using the starting page
address from FCB.
START
CurrentPage = 0;
BootSearchStride = (value read from OTP * 64)
BootSearchCount = 2 ^ (value read from OTP)
ReadCount = 0;
Read NAND Page at
address CurrentPage;
ReadCount ++;
CurrentPage = CurrentPage
+ BootSearchStride
YES
ReadCount <
Is Page FCB
NO
BootSearchCount
YES
NO
FCB Found
FCB Not Found
Figure 12-5. Firmware Control Blocks Flowchart
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Freescale Semiconductor, Inc.
981