CM-IMX53 Datasheet, PDF (9/31 Pages) List of Unclassifed Manufacturers – Smart Mobile Devices

Hardware User Manual - CM-i.MX53
2 General Description
2.1 Functional Description
PWR
CM-i.MX53
PMIC
2GByte
NAND-Flash
1GByte
DDR2-SDRAM
Last change: 10 April 2013
Version 2.3
i.MX53
4MByte
SPI-Flash
AUDIO-Codec
ETH-Phy
GPIO
JTAG
AUDIO
ETH
SD’s I2C’s UART’s SPI’s CAN GPIO’s
Figure 2-1: Functional overview
* CAN is only available at the industrial version of the i.MX53! Depends on version – see chapter 8.1
2.2 Boot Mode
The overall boot mode of the i.MX53 processor is determined by the BOOT_MODE[0..1] pins. For internal
boot mode (BOOT_MODE[0..1] = 00), boot media is selected either by internal fuses, or by GPIOs which are
sampled at power-up. For burning boot fuses, please consult the i.MX53 Reference Manual and the Software
User Manual for the CM-i.MX53.
If boot media selection by GPIO sampling is desired, pull-down or pull-up resistors must be added to the
specified pins. 4k7 Ohm resistors are recommended. See chapter 4 for the voltage level of these pins.
Table 1 contains permitted configuration options of BOOT_MODE pins, where “0” means a pull-down
resistor is required, and “1” means a pull-up resistor is required.
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