MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1648

• 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

Loopback Options
26.3.15 Loopback Options
26.3.15.1 Overview
The Core implements external and internal loopback options with are controlled by the
RCR register bits LOOP.
1648
RMII_LOOP
RMII_ECHO
Register Bit
LOOP
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
The MAC transmit is returned to the MAC receive. No data is transmitted to the external interfaces.
Figure 26-22. Transmit FIFO Overview
Table 26-25. Loopback Options
External RMII Near End Loopback. Not surpport now.
External RMII Far End Loopback. Not surpport now.
Internal MII Loopback
Description
Freescale Semiconductor, Inc.