P89C51RC单片机解密

0 次 时间：2009-08-27 / 11:31:08 来源：夏生

P89C51RC FEATURES：

• 80C51 Central Processing Unit
• On-chip FLASH Program Memory with In-System Programming
(ISP) capability
• Boot ROM contains low level FLASH programming routines and a
default serial loader
• Speed up to 33 MHz
• Full static operation
• RAM expandable externally to 64 k bytes
• 4 level priority interrupt
• 7 interrupt sources, depending on device
• Four 8-bit I/O ports
• Full-duplex enhanced UART
– Framing error detection
– Automatic address recognition
• Power control modes
– Clock can be stopped and resumed
– Idle mode
– Power down mode
• Programmable clock out
• Second DPTR register
• Asynchronous port reset
• Low EMI (inhibit ALE)
• Watchdog timer