The FT122T-R is an enhanced USB Device Controller IC with parallel bus, provides a cost and feature optimized USB full-speed device controller. The design builds on the USB device controller IC, by adding battery charger detection and internal clocking to reduce the PCB space required to complete the design. Communicating with a microcontroller over the generic parallel interface the device will appear as another memory device on the processor bus, offering USB connectivity with bulk, isochronous or interrupt endpoints.
USB 2.0 full-speed compatible
Support for multiple interrupt modes to facilitate bulk and isochronous transfers
Fully autonomous DMA engines for fast data transfer
Supports high-speed parallel interface to external microcontroller
Separate address/data or multiplexed address/data bus
Integrated 2kb configurable endpoint buffer
Double buffer scheme for main endpoint improves data transfer rates
Dedicated clock output pin with programmable clock frequency (4 to 48MHz)
Good USB connection indicator that blinks with USB transmit and receive activities
(EN)
