Information

Overview
MPC8308 PowerQUICC II Pro Processor Reference Manual, Rev. 1
1-12 Freescale Semiconductor
The host and device functions are both configured to support the following four types of USB transfers:
• Bulk
• Control
• Interrupt
• Isochronous
Figure 1-3. USB Controllers Port Configuration
1.2.6.1 USB Dual-Role Controller
• Designed to comply with Universal Serial Bus Revision 2.0 Specification
• Supports operation as a stand-alone USB host controller
— Supports USB root hub with one downstream-facing port
— Enhanced host controller interface (EHCI) compatible
• Supports operation as a stand-alone USB device
— Supports one upstream-facing port
— Supports three programmable bi-directional USB endpoints
• Supports high-speed (480-Mbps), full-speed (12-Mbps), and low-speed (1.5-Mbps) operations.
Low speed is only supported in host mode.
• Host mode direct connect of full-speed and low-speed devices
• Supports USB on-the-go mode when using an external ULPI PHY that includes both device and
host functionality
• Host and device support
1.2.7 Enhanced Local Bus Controller (eLBC)
The main component of the enhanced local bus controller (eLBC) is its memory controller that provides a
seamless interface to many types of memory devices and peripherals. The memory controller is
responsible for controlling four memory banks shared by a NAND Flash control machine (FCM), a
general-purpose chip-select machine (GPCM), and up to three user-programmable machines (UPMs). As
Dual-Role
CSB
TX Buffer
Module
(DR)
RX Buffer
ULPI