Usb Host - Hitachi SH7760 Solution Engine2 Overview

5.2 USB Host

5.2.1 Block Description
Figure 5.2 shows the USB host control block. As shown in Figure 5.2, the SH7760 contains an internal USB
host controller. This internal controller supports USB Version 1.1 and OpenHCI, and has the following features:
• Compatibility with the OpenHCI Version 1.0 register set.
• Conforming to the USB Version 1.1
• Providing a route hub function
• Supporting the low speed (1.5Mbps) and full speed (12MB) modes
• Supporting the overcurrent detection function
• Supporting up to 127 end points
• Enabling the entire SDRAM area of area 3 (connected to the CPU) to be used for transfer data and descriptors
For more details, refer to the pertinent SH7760 Hardware Manual.
SH7760
USB host controller
USB_PENC
USB_OVC
USB_DM
USB_DP
Figure 5.2 USB Host Control Block
USB power
supply
control
driver
33
USB Type A connector (CN7)
+5V
GND
-DATA
+DATA