MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2240

• 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

High-Speed ADC Block Features
ARM Core
System Clock
Generator
AHB
AHB-to-APBH Bridge
AHB Slave
AHB Master
DMA Controller
HCLK
REF_HSADC
DMA Request
APBH Master
HSADC
DMA Slave
Async FIFO
CLK_HSADC
HSADC_Ctrl
ADC control
12-bits
FSM
registers
logics
ADC
Figure 37-1. Top-Level Block Diagram of High-Speed ADC Block
37.2 High-Speed ADC Block Features
The main features of high-speed ADC block are as following:
37.2.1 Sample Rate and Sample Precision
This block integrates an analog ADC block which can support up to 12-bit sample precision
and 2 Msps sample rate. It can also be configured as 10-bit or 8-bit sample precision. The
sample rate can be lower than 2 Msps depending on the user cases. For 10-bit mode and
8-bit mode, the user can choose how many bits should be left shifted out before stored. To
get a lower sample rate, just need to configure the CLKCTRL block to generate an operation
clock with clock frequency of 16x of sample rate.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
2240
Freescale Semiconductor, Inc.