NXP LPC2930高速USB-OTG接口方案

NXP公司的LPC2930是集成了ARM968E-S CPU核和两个TCM区块的MCU，工作频率高达125MHz，并具有全速USB 2.0 Host/OTG/Device控制器，CAN和LIN，56 kB SRAM，外接存储器接口，三个10位ADC和多种串行接口，可广泛应用在消费电子，工业和通信市场。本文介绍了LPC2930主要特性和优势，整体方框图和各种功能的方框图，包括时钟区框图，调制和取样控制子系统（MSCSS）方框图，ADC方框图，PWM方框图，PCRSS方框图，CGU0和CGU1方框图，时钟发生架构图和PLL方框图以及自供电USB接口框图与USB OTG端口配置图。

The LPC2930 combine an ARM968E-S CPU core with two integrated TCM blocks operating at frequencies of up to 125 MHz, Full-speed USB 2.0 Host/OTG/Device controller, CAN and LIN, 56 kB SRAM, external memory interface, three 10-bit ADCs, and multiple serial and parallel interfaces in a single chip targeted at consumer, industrial, and communication markets. To optimize system power consumption, the LPC2930 has a very flexible Clock Generation Unit (CGU) that provides dynamic clock gating and scaling.

LPC2930主要特性和优势：

ARM968E-S processor running at frequencies of up to 125 MHz maximum.

Multilayer AHB system bus at 125 MHz with four separate layers.

On-chip memory:

Two Tightly Coupled Memories (TCM), 32 kB Instruction TCM (ITCM), 32 kB Data TCM (DTCM).

Two separate internal Static RAM (SRAM) instances; 32 kB SRAM and 16 kB SRAM.
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