典型的APB协议包括唯一的APB桥作为Master,而所有的APB模块都是APB slave。 1 前言 1.2 APB 版本 1998年发布的APB Specification Rev E现已过时,并被以下三个修订版所取代: AMBA2 APB Specification(即所谓APB2) AMBA3 APB Protocol Specification v1.0(即所谓APB3) AMBA APB Protocol Specification v2.0/Issue C...
APB master and slave developed in System Verilog. Source codes included apb_master : APB master apb_slave0.sv: APB slave with zero wait states apb_slave.sv : APB slave with one wait state tb.sv : Testbench Comments All source codes are fully synthesizable and tested. All source codes are...
对不同的寄存器做了地址分配,其中status32寄存器只读 然后我们在Testbench里例化APB slave和一个APB master 模型,对该APB slave模块进行验证。 apb_bus0.read(16'h00,32'h9c4e9a31); apb_bus0.write(16'h04,32'h11223344); apb_bus0.write(16'h08,32'hAABB); apb_bus0.write(16'h0C,32'hDD); apb...
对于PSLVERR而言,加入了Slave反馈给mastererror response功能APB3的读写时序:APB2的从器件对上APB3的主器件 SOC设计及Verilog学习笔记四 <OX34>, {r5-r10} 连续访存 仲裁器:Arbiter(Master优先级判断)APB:功耗低,设计简单,不是流水线,效率最高50%APB本身含一个AHB2APB... Decoder译码器AHB-Master:(UP/DMA/...
在APB总线系统中,只有一个master,其他都是slave特点:APB可以工作在高频率下:协议简单:无复杂的时序同步总线总线上所有的transaction都依赖于时钟上升沿一主多从:在APB总线中,只有一个主机,其他都是从机。一般情况下,APB挂在AHB总线系统下,通过AHB-APBBridge将事务在AHB...
下面以ARM DesignStart项目提供的软件包里的AHB转APB桥的代码,对其进行学习与仿真,以深入理解APB桥的实现方法,该转换桥比较简单,实现的是一对一的转换,也可以配合APB slave multiplexer模块,实现一对多的方式(主要依靠APB高位地址译码得到各个从机的PSEL信号)。如果想学习APB系统总线,可以参考Synopsys公司的DW_APB IP,...
Verilog prajwalgekkouga/AHB-to-APB-Bridge Star58 Code Issues Pull requests The AHB to APB bridge is an AHB slave and the only APB master which provides an interface between the highspeed AHB and the low-power APB. Read and write transfers on the AHB are converted into equivalent transfers ...
I2C Master/Slave Single, Dual, Quad and Octal SPI Master/Slave 16550-compatible UART GPIOs o Real-Time Clock Watchdog Timer Generic Timer Programmable Interrupt Controller AHB or AXI to APB Bridge Bridges the APB bus to either an AHB or an AXI bus ...
The Digital Blocks DB-SPI-MS is a Serial Port Interface (SPI) Controller Verilog IP Core supporting both Master/Slave SPI Bus transfers. The DB-SPI-MS contains an AMBA AXI, AHB, or APB Bus Interface for interfacing a microprocessor to external SPI Master/Slave devices. The DB-SPI-MS ...
The I2C-to-APB Bridge Reference Design is used for interfacing one I2C Master and one APB Slave. This bridge has two sections: the I2C Slave section, and the APB Master section. An external I2C Master is required to use this bridge, while the APB Slave can be implemented with...