MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 1977

• 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

Freescale Semiconductor, Inc.
N_PORTS
RSVD2
RSVD1
N_PCC
RSVD0
N_PTT
31 28
27 24
23 20
19 17
15 12
N_CC
N_TT
Field
11 8
PPC
7 5
3 0
16
PI
4
Reserved.
Number of Transaction Translators (N_TT).
Indicates the number of embedded transaction translators associated with the USB2.0 host controller. This
in a non-EHCI field to support embedded TT.
Number of Ports per Transaction Translator (N_PTT).
Indicates the number of ports assigned to each transaction translator within the USB2.0 host controller. This
in a non-EHCI field to support embedded TT.
Reserved.
Port Indicators (P INDICATOR).
Indicates whether the ports support port indicator control. When set to 1, the port status and control registers
include a read/writable field for controlling the state of the port indicator.
Number of Companion Controller (N_CC).
Indicates the number of companion controllers associated with this USB2.0 host controller.
A 0 in this field indicates there are no internal Companion Controllers. Port-ownership hand-off is not
supported.
A value larger than 0 in this field indicates there are companion USB host controller(s). Port-ownership
hand-offs are supported. High, Full- and Low-speed devices are supported on the host controller root ports.
Number of Ports per Companion Controller.
Indicates the number of ports supported per internal Companion Controller. It is used to indicate the port
routing configuration to the system software.
For example, if N_PORTS has a value of 6 and N_CC has a value of 2 then N_PCC could have a value of
3. The convention is that the first N_PCC ports are assumed to be routed to companion controller 1, the
next N_PCC ports to companion controller 2, etc. In the previous example, the N_PCC could have been 4,
where the first 4 are routed to companion controller 1 and the last two are routed to companion controller
2. The number in this field must be consistent with N_PORTS and N_CC.
Reserved.
Port Power Control.
Indicates whether the host controller implementation includes port power control.
A 1 indicates the ports have port power switches.
A 0 indicates the ports do not have port power switches.
The value of this field affects the functionality of the Port Power field in each port status and control register.
Number of downstream ports.
Specifies the number of physical downstream ports implemented on this host controller. The value of this
field determines how many port registers are addressable in the Operational Register. Valid values are in
the range of 0x11-0xF. A 0 in this field is undefined.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
HW_USBCTRL_HCSPARAMS field descriptions
Chapter 31 USB High-Speed On-the-Go Host Device Controller
Description
1977