W78E354芯片解密

　　W78E354芯片WINBOND(华邦)公司的典型OTP单片机，目前，世纪芯芯片解密研究所在针对W78E系列芯片解密技术研究中已经取得系列技术研究成果，可以面向各类型客户提供安全可靠、价格合理、成本周期严格控制的解密方案。
　　下面，我们将对W78E354芯片对简单介绍，供客户及解密工程师参考借鉴。
　　The W78E354 is a stand-alone high-performance microcontroller ASIC specially designed for use in monitor control applications. Using the Winbond 0.8m DPDM process, the W78E354 integrates an embedded 8031 microcontroller core, 16K bytes of Flash cell, 512 bytes of RAM and a number of dedicated hardware functions. These hardware functions include a 6-bit A/D converter, two/fourteen 12/8-bit PWM static DACs, one/three 12/8-bit PWM dynamic DACs, a sync processor, one DDC port, a watchdog timer and other custom glue logic. Additional special function registers are incorporated to control the on-chip peripheral hardware.
　　The chip is used to control the interface signals of other devices in the monitor and to process the video sync signals. Because of high integration and the incorporation of Flash cell for program memory, the device offers the user the competitive advantages of low cost and reduced development time.
　　W78E354 FEATURES
　　· 80C31 MCU core included
　　· 16K bytes Flash OTP memory for program storage
　　· Total 512 bytes of on-chip data RAM:
　　256 bytes accessed as in the 80C32, 256 bytes accessed as external data memory via "MOVX
　　@Ri".
　　· One SPI/RS232 port (a serial port of 8051 standard)
　　· One external interrupt input
　　· Two timers/counters
　　· PWM DACs:
　　- Two 12-bit PWM/BRM Static DACs
　　- Fourteen 8-bit PWM Static DACs
　　- One 12-bit PWM/BRM Dynamic DAC
　　- Three 8-bit PWM Dynamic DACs
　　· One 6-bit ADC with 4 multiplexed analog inputs
　　· Sync Processor:
　　- Horizontal & Vertical Polarity Detector
　　- Sync Separator for composite sync
　　- Horizontal & Vertical Frequency Counter
　　- Programmable dummy frequency generator
　　- Programmable H-clamp pulse output
　　- SOA output (hardware H frequency change detection)
　　· One DDC port (master/slave mode I2C with two slave address reg., support DC1/DDC2B/DDC2B+)
　　· One 8-bit Auto-reload timer for software time base
　　以上是关于W78E354芯片的主要内部特征介绍，供大家参考借鉴，如果客户有W78E354芯片解密需求，请与世纪芯芯片解密研究所联系咨询更多详情：
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