Freescale Semiconductor QorIQ T1023, User Manual

Page: 22 / 36

Table 2-4. IFC connectivity
IFC chip select Manufacturer Device Comment
IFC_CS0 or IFC_CS1
assignment dependent on
SW3[4] Spansion S29GL01GS11TFIV10 NOR flash memory 128 MB
(16-bit)
IFC_CS0 or IFC_CS1
assignment dependent on
SW3[4] Spansion S34MS04G200BHI000 NAND flash 512 MB (8-bit)
2.15 eSPI interface
The eSPI is a full-duplex, synchronous, character-oriented channel that supports a four-
wire interface (receive, transmit, clock, and slave select). The T1023 device has the
ability to boot from a SPI serial flash device in addition to supporting other peripheral
devices conforming to the SPI standard.
On the T1023RDB, a Spansion SPI flash memory is supported. The table below details
the eSPI connection.
Table 2-5. eSPI connection
eSPI chip select Manufacturer Part # Comment
SPI_Flash_CS0_N Spansion S25FL512SAGMFI010 64 MB Spansion SPI flash
(default)
2.16 eSDHC interface
The enhanced SD host controller (eSDHC) provides an interface between host system
and SD/MMC cards. The Secure digital (SD) card is specifically designed to meet the
security, capacity, performance, and environmental requirements inherent in emerging
audio and video consumer electronic devices. Booting from eSDHC interface is
supported through on-chip ROM of processor.
On the T1023RDB, SD/MMC and eMMC are both supported, as shown in the below
figure. The SW3[3] and GPIO1_14 are used to switch between eMMC and SD/MMC
card. Use the U-Boot commands
switch sd
or
switch emmc
to switch SD/MMC card and
eMMC.
NOTE
Boot from eMMC will be supported in the next SDK release.
eSPI interface
QorIQ T1023 Reference Design Board User Guide, Rev. 0, 08/2015
22 Freescale Semiconductor, Inc.