MCIMX281AVM4B Freescale Semiconductor, MCIMX281AVM4B Datasheet - Page 2031

• 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

Chapter 32
Integrated USB 2.0 PHY
32.1 USB PHY Overview
The i.MX28 contains an integrated USB 2.0 PHY macrocell capable of connecting to USB
host/device systems at the USB low-speed (LS) rate of 1.5 Mbits/s, full-speed (FS) rate of
12 Mbits/s or at the USB 2.0 high-speed (HS) rate of 480 Mbits/s. The integrated PHY
provides a standard UTM interface. The USB_DP and USB_DN pins connect directly to a
USB connector.
The following subsections describe the external interfaces, internal interfaces, major blocks,
and programmable registers that comprise the integrated USB 2.0 PHY.
Freescale Semiconductor, Inc.
i.MX28 Applications Processor Reference Manual, Rev. 1, 2010
System PLL
SRAM
Oscillator
ARM
EMI
Crystal
Figure 32-1. USB 2.0 PHY Block Diagram
Bridge
APBX
Integrated USB 2.0 PHY
(UTMI Macrocell )
Digital
Digital
UTMI Digital
RX
TX
USB_DP
USB_DN
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