MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 114

• 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

ARM 926 Processor Core
The ARM state register set contains 16 directly addressable registers, r0 through r15. An
additional register, the Current Program Status Register (CPSR), contains condition code
flags and the current mode bits. Registers r0–r13 are general-purpose registers used to hold
data and address values, with r13 being used as a stack pointer. Register r14 is used as the
subroutine link register (lr) to hold the return address. Register r15 holds the program counter
(PC).
The Thumb state register set is a subset of the ARM register set. The programmer has access
to eight general-purpose registers, r0–r7, the PC (ARM r15), the stack pointer (ARM r13),
the link register (ARM r14), and the CPSR.
Exceptions arise whenever the normal flow of program execution has to be temporarily
suspended, for example, to service an interrupt from a peripheral. Before attempting to
handle an exception, the ARM core preserves the current processor state, so that the original
program can resume when the handler is finished.
114
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
(16Kbytes)
Instruction
Instruction
AMBA AHB
Interface
Interface
Cache
Unused
AHB1
MMU
TCM
Figure 2-1. ARM926 RISC Processor Core
Control Logic and Bus Interface Unit
Interrupts
Embedded Trace
ARM926EJ-S
Macrocell (ETM)
ARM9EJ-S
Interface
Core
Coprocessor
Integrated
Buffer
Write
(32Kbytes )
AMBA AHB
Interface
Unused
Interface
Cache
AHB2
MMU
Data
TCM
Data
Freescale Semiconductor, Inc.