MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1620

• 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

IEEE 1588 Message Formats
All multi-octet fields are transmitted in big-endian order meaning, the most significant byte
is transmitted/received first.
The version field's (versionPTP) last four bits are at the same position (that is, 2nd byte)
for both PTPv1 and PTPv2 headers, allowing a correct identification by inspecting the first
two bytes of the message.
26.3.6.2.1 PTPv1 Header
The type of message is encoded in the fields messageType and control as follows:
1620
7
messageType
0x01
0x01
0x02
0x02
0x02
6
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Table 26-17. PTPv1 Message Type Identification
5
sourceCommunicationTechnology
versionPTP = 0x0001
Table 26-16. Common PTPv1 message header
versionNetwork
4
messageType
control
sourcePortId
sequenceId
sourceUuid
subdomain
reserved
0
1
2
3
4
control
0x00
flags
Bits
3
2
MANAGEMENT
Message Name
DELAY_RESP
FOLLOW_UP
DELAY_REQ
SYNC
1
0
Freescale Semiconductor, Inc.
general message
general message
general message
event message
event message
Octets
Message
16
2
2
1
1
6
2
2
1
1
2
4
Offset
20
21
22
28
30
32
33
34
36
0
2
4