MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1356

• 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

SRAM Controls
19.2 SRAM Controls
The on-chip 128 KB RAM is comprised of four physical banks of 8Kx32-bit each. The
architecture requires a 4-port, word interleaved topology to maximize the performance in
a multi-layer bus system. A diagrammatic representation of the word-interleaving is shown
below.
1356
Figure 19-1. Digital Control (DIGCTL) Block Diagram
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
ARM Core
APB Bridge
APBH Master
Performance
AHB Arbiter
Monitos
PIO Programmable Registers
Shared APBX DMA
PSWITCH
SRAM
AXIS
Entropy
AHB Bridge
AHB-to-APBH Bridge
AHB
OCRAM_CTRL
EMI
DIGCTL
Default First-
Level Page
Controller
Revision
On-Chip
Table
OTP
Freescale Semiconductor, Inc.