MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 343

• 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 6
AHB-to-APBH Bridge with DMA (APBH-Bridge-DMA)
6.1 AHB-to-APBH Bridge Overview
The AHB-to-APBH bridge provides the i.MX28 with an inexpensive peripheral attachment
bus running on the AHB's HCLK. (The H in APBH denotes that the APBH is synchronous
to HCLK, as compared to APBX, which runs on the crystal-derived XCLK.)
As shown in the following figure, the AHB-to-APBH bridge includes the AHB-to-APB
PIO bridge for a memory-mapped I/O to the APB devices, as well as a central DMA facility
for devices on this bus and a vectored interrupt controller for the ARM926 core. Each one
of the APB peripherals, including the vectored interrupt controller, is documented in their
own chapters elsewhere in this document.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Freescale Semiconductor, Inc.
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