EZ-USB FX3 Technical Reference Manual, Document Number: 001-76074 Rev. *F 27
Introduction to EZ-USB FX3
❐ Independent power domains for core and interfaces
❐ Core and USB operation at 1.2 V
❐ GPIF II, I2S, UART, and SPI operation at 1.8 to 3.3 V
❐ I2C and JTAG operation at 1.2 to 3.3 V
■ Storage interfaces*
❐ Mass storage support
❐ SD 3.0 (SDXC) UHS-1
❐ eMMC 4.41
❐ Two ports that can support memory card sizes up to 2 TB
❐ Built-in RAID (implemented in firmware) with support for RAID0 and RAID1
■ System I/O expansion with two secure digital I/O (SDIO 3.0) ports
■ Support for USB-attached storage (UAS), mass-storage class (MSC), human interface device (HID), full, and Turbo-
MTP™
*Storage interfaces are available only with FX3S and its GPIF data bus width is limited to 16 bits.
Table 1-3. Feature Differences Between FX3 and FX3S
*All serial interfaces might not be available under all configuration options. Refer to the pin description section in the
datasheet for details.
Feature EZ-USB FX3 EZ-USB FX3S
GPIF 8/16/32-bit 8/16-bit
Storage ports No 1 or 2 ports (SD3.0, eMMC4.41, SDIO3.0)
USB 3.0, USB 2.0 Device Yes Yes
HS-OTG Yes Yes
CPU ARM9, 200 MHz ARM9, 200 MHz
Embedded SRAM 256 KB/512 KB 256 KB/512 KB
Serial Interfaces* I2C, SPI, I2S, UART I2C, SPI, I2S, UART
Boot Options I2C, SPI, USB, GPIF based All FX3 boot options + eMMC based boot options
Package 121-ball BGA, 10 x 10 mm, 0.8 mm pitch 121-ball BGA, 10 x 10 mm, 0.8 mm pitch
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