mc68hc908jw32 Freescale Semiconductor, Inc, mc68hc908jw32 Datasheet - Page 145

• Manufacturer Part Number: mc68hc908jw32
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

Chapter 11
USB 2.0 FS Module
11.1 Introduction
This section describes the universal serial bus (USB) module. The USB module is designed to serve as
a full speed (FS) USB device per the Universal Serial Bus Specification Rev 2.0. Control and interrupt
data transfers are supported. Endpoint 0 functions as a transmit/receive control endpoint; endpoint 1, 2,
3 and 4 functions are configurable as interrupt or bulk endpoints and support transmit or receive
communication.
11.2 Features
Features of the USB module include:
Freescale Semiconductor
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Full Universal Serial Bus Specification 2.0 full-speed functions
12Mbps data rate
On-chip 3.3V regulator
Endpoint 0 with 8-byte transmit buffer and 8-byte receive buffer
64 bytes programmable buffer to share with 4 data endpoint
4 data endpoints supports
USB device controller with protocol control supports single configuration, 2 interfaces and no
alternate settings for each interface
Programmable endpoint type for four independent endpoints — interrupt or bulk
USB data control logic:
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USB reset options:
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Suspend and resume operations, with remote wakeup support
Packet identification and decoding/generation
CRC generation and checking
NRZI (Non-Return-to Zero Inserted) encoding/decoding
Bit-stuffing
Sync detection
End-of-packet detection
Internal MCU reset generation
CPU interrupt request generation
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