MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1814

• 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

Modes of Operation
29.4.2.4.5 Mode 4 -- Double Tagging with Replace
Insert Tag on untagged and single tagged. If double tagged, overwrite outer tag.
29.4.3 IP Snooping
Programmable snooping for up to eight programmable IP protocols. If the protocol field of
an IPv4 or IPv6 frame matches one of the programmed values and snooping is enabled for
that entry, the frame can be processed as follows:
The management port is identified by the port number set in register MGMT_CONFIG.
The function is configured using registers IPSNOOP1..8 of the register map.
The snooping function can be enabled/disabled individually for each of the entries. If no
protocol matches, or a match occurs but snooping is disabled or the frame is coming from
the management port itself, the frame is processed normally.
29.4.4 TCP/UDP Port Number Snooping
Programmable snooping for up to eight programmable TCP or UDP port numbers. If the
source or destination port number field (configurable) within and TCP/IP or UDP/IP frame
(IPv4 and IPv6) is matching the compare value and snooping is enabled for that entry, the
frame can be processed as follows:
The management port is identified by the port number set in register MGMT_CONFIG.
The function is configured using registers PORTSNOOP1..8 of the register map.
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• Forward to designated management port only
• Copy to management port and normal forward/flood
• Discard on match
• Forward to designated management port only
• Copy to management port and normal forward/flood
• Discard on match
Snooping respects any optional VLAN tags (that is, extracts next
after last VLAN tag).
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Note
Freescale Semiconductor, Inc.