Renesas R8A66597 USB连接解决方案

发布时间:2012-9-6 13:11    发布者:1770309616
关键词: Renesas , R8A66597 , USB
Renesas公司的R8A66597 通用串行总线(USB)控制器,具有16位CPU总线接口,配备了USB主功能和可用于OTG的外设功能.器件内置了USB收发器,和USB 2.0所有传输类型兼容,内部缓冲存储器是8.5KB.低功耗工作,内核电压1.5V,主要用于导航系统,DVD,STB,音频设备,打印机,外部存储设备和其它配备了USB的设备.本文介绍了R8A66597主要特性,引脚功能框图以及评估板R0K866597D020BR主要特性,电路图,材料清单和PCB元件布局图.

The R8A66597 is a Universal Serial Bus (USB) Controller equipped with USB Host functions and Peripheral functions applicable for On-The-Go. When selecting the Host Controller function, it has two USB ports available for Hi-Speed, Full-Speed, and Low-Speed transfer compliant with USB Specification Revision 2.0. When selecting the Peripheral Controller function, it has one USB port available for Hi-Speed and Full-Speed transfer compliant with USB Specification Revision 2.0.

This controller has a built-in USB transceiver and is compatible with all the transfer types defined in USB Specification Revision 2.0.

The internal buffer memory is 8.5K, and a maximum ten pipes can be used for transferring data. For Pipe1 to Pipe9, any endpoint address can be assigned matching the peripheral functions for communication or user system. Separate bus or multiplex bus can be selected for the CPU connection. A split bus interface (exclusively for the DMA interface) that is different from the CPU bus interface is provided and is suitable for systems demanding high-performance data transfer.

R8A66597主要特性:

1. Built-in Host Controller and Peripheral Controller compatible with Hi-Speed USB

• Built-in USB Host Controller and Peripheral Controller

• Toggle between USB Host functions and Peripheral functions is possible according to what is written to the register

• Built-in USB transceiver

2.Low power consumption

• 1.5V core power consumes less power when operating

• With the installed Low Power Sleep Mode functions, less power is consumed when the USB is not in use, which is also applicable for portable devices

• Standby power consumption can be greatly reduced by keeping only the VIF power source ON when not using the USB function.

• Operational with a 3.3V single power supply using the internal 1.5V core power regulator

3.Space-saving package

• Few external devices and space-saving package

􀁸 VBUS signal can be connected directly to the controller input pin

􀁸 Built-in D+ pull-up resistor (for Peripheral function)

􀁸 Built-in D+ and D- pull-down resistors (for Host function)

􀁸 Built-in D+ and D- terminating resistors (for Hi-Speed operations)

􀁸 Built-in D+ and D- output resistors (for Full-Speed and Low-Speed operations)

4.Compatible with all USB transfer types

• Compatible with all USB transfer types, including isochronous transfer

􀁸 Control transfer

􀁸 Bulk transfer

􀁸 Interrupt transfer (not compatible with high-bandwidth)

􀁸 Isochronous transfer (not compatible with high-bandwidth)

5. Bus interface

• 16-bit CPU bus interface

􀁸 Compatible with 16-bit separate bus/16-bit multiplex bus

������ Compatible with DMA transfer in 8-bit/16-bit access (slave function)

• 8-bit split bus (exclusive for external direct memory access controller (DMAC)) interface

• Built-in two DMA interface channels

• DMA transfer provides 40MB/second high-performance data transfer

6.Pipe configuration

• Built-in 8.5KB buffer memory for USB communication

Maximum of ten pipes can be selected (including default control pipe)

• Programmable pipe configuration

• Any endpoint address can be assigned to Pipe1 to Pipe9

• Transfer conditions that can be written for each pipe

􀁸 Pipe0: Control transfer, single buffer fixed at 256 bytes

􀁸 Pipe1~Pipe2: Bulk transfer/Isochronous transfer, continuous transfer modes.

programmable buffer size (specifiable up to 2K bytes per side, double buffer also specifiable)

􀁸 Pipe3~Pipe5: Bulk transfer, continuous transfer modes,programmable buffer size (specifiable up to 2K bytes per side, double buffer also specifiable)

􀁸 Pipe6~Pipe9: Interrupt transfer, single buffer fixed at 64 bytes

7. Features when selecting Host functions

• Compatible with Hi-Speed (480Mbps), Full-Speed (12Mbps) and Low-Speed transfer (1.5Mbps)

• Several Peripheral devices can be connected through one tier hub

• Reset handshake auto response

• SOF and packet transmission schedule automation

• Transfer interval setup function for Isochronous and Interrupt transfer

8.Features when selecting Peripheral functions

• Compatible with Hi-Speed (480Mbps) and Full-Speed transfer (12Mbps)

• Auto identification of Hi-Speed or Full-Speed operations according to reset handshake auto response

• Control transfer stage management function

• Device state management function

• Auto response function related to SET_ADDRESS request

• NAK response interrupt function (NRDY)

• SOF interpolation function

9.Functions that Provide On-The-Go Support

• Built-in ID pin and ID pin monitor bit enables determination of A-Device/B-Device at start-up

• Built-in control bit facilitates Host Negotiation Protocol

10.Other functions

• Compatible with the CPU of big-endian or little-endian according to the byte-endian swap function

• Transfer end function according to transaction count

• End function of DMA transfer by external trigger (DEND pin)

• SOF plus output function

• Three types of input clock can be selected by built-in PLL

􀁸 Select from 48MHz/24MHz/12MHz

• Function to modify the BRDY interrupt event notification timing (BFRE)

• Function to clear the auto buffer memory after the pipe data specified in the DxFIFO port is read (DCLRM)

• Function to provide the auto clock from clock stop status

• NAK setting function (SHTNAK) for PID response corresponding to transfer end

R8A66597主要应用:

Navigation systems, DVD recorders, set-top boxes, audio devices, printers, external storage devices and other devices equipped with USB.

The R0K866597D020BR is the evaluation board of the USB Host function and built-in functions. This instruction manual explains how to setup up and operate the related hardware and offers cautionary notes concerning usage.
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图1.R8A66597引脚功能框图

R8A66597评估板R0K866597D020BR

The R0K866597D020BR is an evaluation board for the Renesas Hi-Speed USB ASSP R8A66597FP. Two USB-A receptacles are mounted on the board for evaluation of USB host operations using USB port0 and USB port1 of R8A66597. CN1 can be used for evaluation of USB peripheral operations. Please refer to the data sheet “USB2.0 Dual
Function Controller R8A66597FP” for detailed specifications of the R8A66597.

评估板R0K866597D020BR主要特性:

(1) By connecting this board to a control board using the interface connector of this board, it is possible to evaluate the user system.

(2) A solder pattern is prepared on the USB signal lines for chip common mode choke coils. It is possible to do EMI suppression evaluation.

(3) A solder pattern is prepared on the USB signal lines for ESD protection devices. It is possible to do ESD protection evaluation.

(4) It is possible to supply 3.3V or 1.8V to the interface power VIF of R8A66597FP.

(5) It is possible to test R8A66597FP’s functions (excluding split bus) by connecting with Renesas Starter Kits board.

It is possible to supply 5V, 500mA to the VBUS.
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图2.评估板R0K866597D020BR外形图
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图3.评估板R0K866597D020BR电路
评估板R0K866597D020BR材料清单(BOM):
7.gif

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4.gif
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图4.评估板R0K866597D020BR PCB元件布局图(顶层)
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图5.评估板R0K866597D020BR PCB元件布局图(底层)
详情请见:
rej03f0229_r8a66597ds.pdf (1.74 MB)

r19an0005ej_66597d020.pdf (927.16 KB)
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1770309616 发表于 2012-12-13 12:55:24
Renesas公司的R8A66597通用串行总线(USB)控制器,具有16位CPU总线接口,配备了USB主功能和可用于OTG的外设功能。器件内置了USB收发器,和USB2.0所有传输类型兼容,内部缓冲存储器是8.5kB。低功耗工作,内核电压1.5V,主要用于导航系统、DVD、STB、音频设备、打印机、外部存储设备和其他配备了USB的设备。

R8A66597是一个通用串行总线(USB)控制器,配有USB主机功能和外设功能,适用于On-The-Go功能。当选择主机控制器功能时,它有两个USB端口,可用于高速,全速和低速传输,并符合USB规范修订版2.0。在选择外设控制器功能时,它有一个可用的USB端口,用于高速和全速传送,符合USB规范修订版2.0。该控制器具有一个内置的USB收发器,兼容所有的USB规范修订版2.0的传输类型。

内部缓冲存储器为8.5k,最多10管道可用于传输数据。对于Pipe1~Pipe9,可以分配任何端点地址,并与通信或用户系统的外设功能相匹配。可选择独立总线,或多路复用总线用于CPU的连接。还具有分割总线接口(专为DMA接口),与CPU总线接口不同,适用于高性能要求的数据传输的系统。

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图1 R8A66597引脚功能框图

R8A66597主要特性

•内置与Hi-Speed USB兼容的主机控制器和外设控制器

–内置USB主机控制器和外设控制器

– USB主机功能和外设功能之间的 切换是根据的寄存器写的内容决定

–内置USB收发器

•低功耗

–1.5V核电源,运行时消耗更少的功率

–其低功耗的睡眠模式功能,在USB不使用时,消耗更少的功率,这也适用于便携式设备

–在不使用USB功能时,只保留了VIF电源,待机功耗可以大大减少

–使用3.3V单电源供电,采用内部1.5V核电压调节器

•节省空间的封装,很少的外部设备和节省空间的封装

–VBUS信号可以直接连接到控制器的输入引脚

–内置的D+上拉电阻(外围功能)

–内置的D+和D-上拉下拉电阻(主机功能)

–内置的D+和D-的终端电阻(支持Hi-Speed操作)

–内置的D+和D-输出电阻(全速和低速运行)

•兼容所有USB传输类型,兼容所有USB传输类型,包括同步传输

–控制传输

–批量传输

–中断传输(不支持高带宽)

–同步传输(不支持高带宽)

•总线接口,16位CPU总线接口

–与16位独立bus/16bits,多路复用总线兼容

– 8bits/16bits访问与DMA传输兼容(仆功能)

– 8位分割总线接口(不包括外部直接存储器存取控制器DMAC)界面

–内置两个DMA接口通道

– DMA传输提供了40MB/s的高性能数据传输

• Pipe配置

–内置8.5kB缓冲存储器,用于USB 通信

–最多可以选择10个管道(包括默认控制管道)

–可编程管道配置

–任何端点地址可以分配给Pipe1~Pipe9

–每个管道可以写转移条件。

– Pipe0:控制传输,缓冲区固定为 256B

– Pipe1~Pipe2:批量传输/同步传输,连续传输模式

–可编程缓冲区的大小(每边最多可指定2kB,也可指定双缓冲)

– Pipe3~Pipe5:批量传输,连续传输模式,可编程缓冲区的大小(每边最多可指定2kB,也可指定双缓冲)

– Pipe6~Pipe9:中断传输方式,固定为64kB的缓冲区

•选择主机功能的特点

–与高速(480Mbps),全速(12Mbps)和低(1.5Mbps)传输兼容

–一些外围设备可以通过层集线器连接

–复位握手自动回复

– SOF和数据包传输调度自动化

–传输间隔设置同步和中断传输功能

•选择外设功能时的特性,

–与Hi-Speed(480Mbps)和全速(12Mbps)传输兼容

–自动识别高速或全速运行握手自动复位响应

–控制传输阶段管理功能

–设备状态管理功能

– SET_ADDRESS请求相关的自动响应功能

– NAK响应中断功能(NRDY)

–SOF插功能

•提供ON-The-Go支持的功能

–内置ID引脚和ID引脚显示器位,在的启动时,能够确定A-Device/B-Device

–内置的控制位,有利于主机协商协议

•其他功能

–根据byte-endian的交换功能,兼容CPU的big-endian或little-endian

–根据交易次数,决定传送端功能

–通过外部触发(DEND引脚)决定DMA传输功能

– SOF增加输出功能

–通过内置的PLL,可以选择三种类型的输入时钟,从48MHz/24MHz/12MHz选择

–修改BRDY中断事件通知的定时(BFRE)功能

– DxFIFO端口指定管数据(DCLRM)读后,清除自动缓冲存储器功能

–提供自动时钟,时钟停止状态功能

– PID响应传输结束的NAK设置的功能(SHTNAK)

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图2 评估板R0K866597D020BR电路图

R8A66597主要应用

•导航系统

•DVD录像机

•机顶盒

•音频设备

•打印机

•配备了USB的外部存储设备和其他

设备

评估板

R0K866597D020BR

R0K866597D020BR是瑞萨公司高速USB ASSP R8A66597FP评估电路板。两个USB-A插座安装在电路板上用于USB主机操作评估,采用了R8A66597的USB端口0和USB端口1。CN1可用于评价USB外围操作。可以提供VBUS 5V,500mA电源。

R0K866597D020BR主要特性

•通过连接此板到控制电路板(采用此板使用的接口连接器),能够评价用户系统

• USB信号线上备有焊接结构图,用于芯片共模扼流线圈。可以EMI抑制评价

• USB信号线上备有焊接结构图,用于 ESD保护器件,可以ESD保护评估

• R8A66597FP接口电源VIF上可以 提供3.3V或1.8V电源

•通过瑞萨入门套件板,可以测试R8A66597FP的功能(不包括分割总线)

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