C8051F342 查看數據表（PDF） - Silicon Laboratories

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C8051F342

Full Speed USB Flash MCU Family

Silicon Laboratories 

C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D

16. Universal Serial Bus Controller (USB0)

C8051F34x devices include a complete Full/Low Speed USB function for USB peripheral implementa-

tions*. The USB Function Controller (USB0) consists of a Serial Interface Engine (SIE), USB Transceiver

(including matching resistors and configurable pull-up resistors), 1k FIFO block, and clock recovery mech-

anism for crystal-less operation. No external components are required. The USB Function Controller and

Transceiver is Universal Serial Bus Specification 2.0 compliant.

Transceiver

VDD

D+

D-

Serial Interface Engine (SIE)

Endpoint0

Data

Transfer

Control

IN/OUT

Endpoint1

Endpoint2

IN EOnUdpToint3

IN OUT

IN OUT

USB

Control,

Status, and

Interrupt

Registers

CIP-51 Core

USB FIFOs

(1k RAM)

Figure 16.1. USB0 Block Diagram

Important Note: This document assumes a comprehensive understanding of the USB

Protocol. Terms and abbreviations used in this document are defined in the USB Specifi-

cation. We encourage you to review the latest version of the USB Specification before pro-

ceeding.

*Note: The C8051F34x cannot be used as a USB Host device.

Rev. 1.3

159

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