MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1619

• 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

26.3.6.1.1 UDP/IP
The 1588 messages (v1 and v2) can be transported using UDP/IP multicast messages. The
following IP multicast groups are defined for PTP. The table also shows their respective
MAC layer multicast address mapping according to RFC 1112 (last 3 octets of IP follow
the fixed value of 01-00-5e).
26.3.6.1.2 Native Ethernet (PTPv2)
In addition to the usage of UDP/IP frames, IEEE 1588v2 defines a native Ethernet frame
format that uses ethertype=0x88f7. The payload of the Ethernet frame immediately contains
the PTP datagram, starting with the PTPv2 header.
Beside others, version 2 adds a peer delay mechanism to allow delay measurements between
individual point-to-point links along a path over multiple nodes. The following multicast
domains are additionally defined in PTPv2.
26.3.6.2 PTP Header
All PTP frames contain a common header, which is used to determine the protocol version
as well as the type of message, which defines the further content of the message.
Freescale Semiconductor, Inc.
Message Type
general
event
AlternatePTPdomain1
AlternatePTPdomain2
AlternatePTPdomain3
DefaultPTPdomain
Name
peer delay messages
Normal messages
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Name
UDP Port
Table 26-13. UDP/IP Multicast Domains
319
320
Table 26-15. PTPv2 Multicast Domains
Table 26-14. UDP Portnumbers
224.0.1.129
224.0.1.130
224.0.1.131
224.0.1.132
IP Address
All other messages (for example, follow-up, delay-response)
Used for SYNC and DELAY_REQUEST messages
Chapter 26 Ethernet Controller (ENET)
01-1b-19-00-00-00
01-80-c2-00-00-0e
Note
MAC Address
MAC Address mapping
01-00-5e-00-01-81
01-00-5e-00-01-82
01-00-5e-00-01-83
01-00-5e-00-01-84
1619