Overview

The S2R72V27 is a USB host/device controller LSI that supports the USB 2.0 high-speed mode. A single USB port can be operated as a USB host or USB device depending on how control is switched.

This LSI maintains high compatibility with the S2R72V17 but includes additional functions such as support for USB host isochronous transfers. This S2R72V27 is also compatible with S2R72V27 at it’s function.

Features

USB 2.0 host functions

• 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

   Dedicated control transfer channel x1

   Dedicated bulk transfer channel x1

   Bulk, interrupt, and isochronous transfer channels x4

• 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)

• Dedicated terminals for 12/24/48 MHz clock input

• 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, PFBGA8UX81

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