at89c51re2-slsem ATMEL Corporation, at89c51re2-slsem Datasheet - Page 165

• Manufacturer Part Number: at89c51re2-slsem
• Description: At89c51re2 8-bit Flash Microcontroller
• Manufacturer: ATMEL Corporation

2
AT89C51RE2
Programmable Counter Array PCA ................................................... 66
Serial I/O Port ...................................................................................... 78
Interrupt System ................................................................................. 93
Power Management .......................................................................... 102
Oscillator ........................................................................................... 106
Hardware Watchdog Timer .............................................................. 108
Reduced EMI Mode ........................................................................... 110
Keyboard Interface ........................................................................... 111
Serial Port Interface (SPI) ................................................................ 115
Power Monitor ................................................................................... 127
PCA Capture Mode............................................................................................. 74
16-bit Software Timer/ Compare Mode............................................................... 74
High Speed Output Mode ................................................................................... 75
Pulse Width Modulator Mode.............................................................................. 76
PCA Watchdog Timer ......................................................................................... 77
Framing Error Detection ..................................................................................... 78
Automatic Address Recognition.......................................................................... 79
Registers............................................................................................................. 81
Baud Rate Selection for UART 0 for Mode 1 and 3............................................ 82
Baud Rate Selection for UART 1 for Mode 1 and 3............................................ 83
UART Registers.................................................................................................. 87
Registers............................................................................................................. 94
Interrupt Sources and Vector Addresses.......................................................... 101
Introduction ....................................................................................................... 102
Idle Mode .......................................................................................................... 102
Power-Down Mode ........................................................................................... 102
Registers........................................................................................................... 105
Registers........................................................................................................... 106
Functional Block Diagram .................................................................................107
Using the WDT ................................................................................................. 108
WDT During Power Down and Idle................................................................... 109
Registers........................................................................................................... 112
Features............................................................................................................ 115
Signal Description............................................................................................. 115
Functional Description ...................................................................................... 117
Description........................................................................................................ 127
7663B–8051–03/07