MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 971

• 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

LOAD DCD is an extension from LOAD command by adding an additional flag. When the
DCD flag is set, ROM runs DCD to configure the external memory. The ROM command
is 16 bytes in length. The following table shows the field description. Bold indicates the
changes.
HAB Jump Command
The HAB Jump command is overload from Jump command by adding an additional flag.
When the HAB flag is set, ROM calls the HAB4 Authenticate image function with IVT as
argument. The authenticate image function returns the image entry, and then ROM performs
a real jump to that address. The following table shows the HAB Jump command fields.
Bold indicates the changes. For i.MX28, JUMP without HAB is no longer valid hence HAB
flag should always be set.
HAB Call Command
Freescale Semiconductor, Inc.
m_checksum
m_tag
m_flags
m_address
m_count
m_data
m_checksum
m_tag
m_flags
m_address
m_count
m_data
Field
Field
Simple checksum of other fields of boot_command_t.
0x02 or ROM_LOAD_CMD.
Normal load 0x0000, DCD load 0x0001.
Memory address to which data is stored.
Number of bytes to load. This is also the number of valid bytes in the data cipher blocks following this command.
CRC-32 over the data to be loaded.
Simple checksum of other fields of boot_command_t.
0x04 or ROM_JUMP_CMD.
HAB jump 0x0001. HAB flag should always be set for i.MX28.
Address of the IVT pointer for HAB jump.
0
Argument to pass to the entry point in R0.
Table 12-23. LOAD DCD Command Field Descriptions
Table 12-24. HAB Jump Command Field Descriptions
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Figure 12-4. LOAD DCD Command
Description
0
ROM_LOAD_CMD
m_count = 18
1
data
Description
2
data
padding
Chapter 12 Boot Modes
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