M30240ECFP MITSUBISHI [Mitsubishi Electric Semiconductor], M30240ECFP Datasheet - Page 44

• Manufacturer Part Number: M30240ECFP
• Description: M30240 Group Specification
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Specifications in this manual are tentative and subject to change
Universal Serial Bus
2.18 Universal Serial Bus
2.18.1 USB Function Control Unit (USB FCU)
2.18.1.1 Serial Interface Engine
The implementation of the USB by this device is accomplished chiefly through the device’s USB
Function Control Unit (See Figure 1.29). The Function Control Unit’s overall purpose is to handle the
USB packet protocol layer. The Function Control Unit notifies the MCU that a valid token has been
received. When this occurs, the data portion of the token is routed to the appropriate FIFO. The MCU
transfers the data to, or from, the host by interacting with that endpoint’s FIFO and CSR register.
The USB Function Control Unit is composed of five sections:
• Serial Interface Engine (SIE)
• Generic Function Interface (GFI)
• Serial Engine Interface Unit (SIU)
• Microcontroller Interface (MCI)
• USB Transceiver
The Universal Serial Bus (USB) has the following features:
The SIE interfaces to the USB serial data and handles deserialization/serialization of data, NRZI encoding
decoding, clock extraction, CRC generation and checking, bit stuffing, and other items pertaining to the USB
protocol such as handling inter-packet time-outs and packet ID (PID) decoding.
• Complete USB Specification (version 1.1) Compatibility
• Error-handling capabilities
• FIFOs:
• Nine endpoints - control endpoint (Endpoint 0 - bi-directional) plus four IN and four OUT
• Complete device configuration
• Support of all device commands
• Supports of full-speed functions
• Support of all USB transfer types:
• Suspend/Resume operation
• On-chip USB transceiver with voltage converter
• Start-of-frame interrupt and output pin
endpoints
• Endpoint 0: IN/OUT 32-byte
• Endpoint 1: IN 128-byte
• Endpoint 2: IN 32-byte
• Endpoint 3: IN 32-byte
• Endpoint 4: IN 32-byte
• Isochronous
• Bulk
• Control
• Interrupt
1-44
OUT 128-byte
OUT 32-byte
OUT 32-byte
OUT 32-byte
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Mitsubishi microcomputers
M30240 Group