Overview

The S2R72V18 is a USB host/device controller LSI that supports the USB 2.0 high-speed mode. It features two host ports to function as a USB root hub. One of the ports can be used as a USB device port after setting a switch to the appropriate setting.

Features

USB 2.0 host functions>

• 2-port root hub

• Supports HS (480 Mbps), FS (12 Mbps), and LS (1.5 Mbps) transfer

• Built-in pull-down resistor for downstream ports (no external circuit required)

• Built-in HS termination (no external circuit required)

• Supports control, bulk, interrupt, and isochronous transfers

Proven channel system designed specifically for embedded host

One control transfer channel for each port

One bulk transfer channel for each port

Four bulk, interrupt, and isochronous transfer channels for each port

• USB power switching interface

USB 2.0 device functions>

• Supports HS (480 Mbps) and FS (12 Mbps) transfer

• Built-in FS/HS termination (no external circuit required)

• VBUS 5V I/F (requires external protective circuit)

• Supports control, bulk, interrupt, and isochronous transfers

• Supports five bulk, interrupt, and isochronous transfers and Endpoint 0

MCU I/F>

• Supports 16-bit width standard CPU bus I/F

• Includes DMA 1ch for each port (multi-word sequence)

• Big Endian (Includes bus-swapping function to support Little Endian CPUs)

• I/F variable voltage (3.3 V to 1.8 V)

Miscellaneous>

• Clock input: Supports 12 MHz/24 MHz crystal oscillator. (built-in oscillator circuit and 1 MΩ feedback resistor)

• Power supply voltage: 3-voltage system including 3.3 V, 1.8 V, and CPU I/F power supply (3.3 V to 1.8 V)

• Package type QFP14-80, PFBGA10UX121

• Guaranteed operating temperature range: -40°C to 105°C