AX6800X datasheet(12/57 Pages) ASIX

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AX6800x

2/4-Port USB KVM Switch SoC

1.0 Introduction

1.1 General Description

AX6800x, Single Chip Micro-controller with USB Host and Multiple

Addressed Device Controller, is a

System-on-Chip (SoC) solution which offers high performance CPU architecture with on-chip 128KB Flash

memory as Program Memory, on-chip 32KB Data Memory for CPU, built in one USB host controller and one

USB root hub that supports four downstream ports compliant with USB2.0 Full/Low Speed Standard, 4 Device

Controllers compliant with USB2.0 Full Speed Standard, and rich peripheral interfaces for wide varieties of

application which need bridge to the USB interface.

The CPU architecture of AX6800x utilizes the USB protocols maintenance for those upstream and downstream

ports to the external USB Host and Device and performs packet translation between upstream and downstream

ports. The Root Hub provided all the transactions scheduling and management with CPU to maintain to the all

adapted USB devices. The Host and Device controller with DMA engine provide the data transmission between

the USB bus from/to on-chip 32KB SRAM.

In addition to stand-alone application, AX6800x with USB protocol suite running on-chip and various serial host

interfaces supported, High Speed UART or High Speed SPI, can be used as a data bridge from/to USB interface in

an embedded system.

A 12 MHz crystal is needed for internal 96 MHz PLL to provide the 48 and 12 MHz for USB related and the

typical operating frequency of AX6800x is 48 or 96MHz. AX6800x also integrates power-on reset circuit on-chip

that can simplify external reset circuit on PCB and prevent the program code corrupt in Flash memory.

AX6800x is available in 100-pin LQFP or 64-pin QFN RoHS compliant package and the recommended operating

temperature range is 0 to 70°C.

AX6800x provides cost effective solution to enable simple, easy, and low cost integration capability for KVM

applications. It could also provide highly programmable flexibility and compatibility.

1.2 Product Selection Guide

Below table shows the major differences among the 2 available part numbers.

Part Number

Flash Program

Memory (bytes)

CPU SRAM

Data Memory

(bytes)

USB

Host/Device

Ports

GPIO

Package

Operating

Temperature

AX68002 QF

128K

32K

2+2

64-pin QFN

0 to 70°C

AX68004 LF

128K

32K

4+4

100-pin LQFP

0 to 70°C

AX6800X Datasheet(PDF) 12 Page - ASIX Electronics Corporation

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