MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1615

• 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

The IP header is followed by the payload immediately, which can contain further protocol
headers like for example, TCP or UDP as indicated by the protocol field value. The complete
IP datagram is transported in the payload section of an Ethernet frame.
26.3.5.4 IPv6 Datagram Format
Figure 26-8
IP datagram. It is organized in 32-bit words and has a fixed length of 10 words (40 byte).
The next header field identifies the type of the header to follow the IPv6 header. It is defined
identical to the protocol identifier within IPv4 with new definitions for identifying so-called
Freescale Semiconductor, Inc.
fragment ID, flags, frag-
destination address
header checksum
source address
Field Name
ment offset
protocol
length
Vers
TOS
TTL
IHL
shows the IP Version 6 (IPv6) header, which is located at the beginning of an
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
4-bit internet header length information. Determines number of 32-bit words found within the IP
Total length of the datagram in bytes. It includes all octets of header and payload
Figure 26-7. IPv4 Header Format
Table 26-8. IPv4 Header Fields
3
1
Vers
Protocol Identifier of protocol that follows in the datagram
TTL
header. The default value, if no options are present is 5
fragment ID
2
7
IHL
4-bit IP version information. It is 4 for IPv4 frames
Time-to-live. If zero, datagram must be discarded
2
3
protocol
destination address
TOS
source address
Checksum over all IP header fields
1
9
Fields used for IP fragmentation
Type of Service / DiffServ field
options
flags
1
5
Destination IP address
header checksum
Source IP address
1
1
fragment offset
length
Description
7
3
0
Chapter 26 Ethernet Controller (ENET)
1615