MCIMX286CVM4B Freescale Semiconductor, MCIMX286CVM4B Datasheet - Page 1826

• Manufacturer Part Number: MCIMX286CVM4B
• Description: IC MPU I.MX286 289MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: i.MX28r

Specifications of MCIMX286CVM4B

• 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: Compliant

Broadcast Multicast VLAN Domain Resolution
29.4.10.3 Broadcast Multicast VLAN Domain Resolution
29.4.10.3.1 Overview
To ensure that traffic within VLAN channels are always routed to the correct ports, for
example to avoid the duplication of critical information through a Network, the Switch
implements a resolution mechanism that, for any frame that is switched to multiple ports,
checks the VLAN ID provided with the current frame.
The VLAN resolution mechanism searches the VLAN Resolution Table (See Registers
VLAN_RES_TABLE_0
IDs, each associated to a port bit mask. The resolution mechanism is used for the following
conditions:
29.4.10.3.2 VLAN Resolution Table
The VLAN resolution Table (Registers VLAN_RES_TABLE_0 to VLAN_RES_TABLE_31)
provides a unique VLAN ID / port bit mask association for up to 32 VLANs. A default
entry (register BCAST_DEFAULT_MASK) provides an additional port bit mask. The port
bit mask implements one bit for each port.
Each Port Bit indicates, if set to '1', that it is member of the VLAN and frames with the
corresponding VLAN ID can be switched to the port. If the Port Bit is set to '0' a frame with
the corresponding VLAN ID will not be switched to that port. If no VLAN ID matches, the
default mask is applied.
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• Unicast Frames with a destination MAC address that are not in the Table of the Layer
• Mulicast Frames with a destination MAC address that are not in the Table of the Layer
• Any Broadcast Frame
2 engine
2 engine
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
Figure 29-13. VLAN Resolution Table Overview
(BCAST_DEFAULT_MASK)
to VLAN_RES_TABLE_31), which stores up to 32 unique VLAN
Default Entry
Entry 31
Entry 0
Entry 1
*
*
*
14
[14:3] VLAN ID
VLAN ID #31
VLAN ID #0
VLAN ID #1
3
[2:0] Port Mask
2
1
0
Freescale Semiconductor, Inc.