AT89C51ID2-SLSIM Atmel, AT89C51ID2-SLSIM Datasheet - Page 155

• Manufacturer Part Number: AT89C51ID2-SLSIM
• Description: C51ID2 64KF TWI 32KHZ PLCC44 3-5.5V IND.
• Manufacturer: Atmel

4289C–8051–11/05
Serial I/O Port ...................................................................................... 52
Interrupt System ................................................................................. 63
Power Management ............................................................................ 72
Keyboard Interface ............................................................................. 76
2-wire Interface (TWI) ......................................................................... 80
Serial Port Interface (SPI)................................................................... 98
Hardware Watchdog Timer .............................................................. 107
ONCE(TM) Mode (ON Chip Emulation) ........................................... 109
Power-off Flag................................................................................... 110
EEPROM Data Memory..................................................................... 111
Reduced EMI Mode........................................................................... 115
PCA Watchdog Timer ......................................................................................... 51
Framing Error Detection ..................................................................................... 52
Automatic Address Recognition.......................................................................... 53
Registers............................................................................................................. 55
Baud Rate Selection for UART for Mode 1 and 3............................................... 55
UART Registers.................................................................................................. 58
Registers............................................................................................................. 64
Interrupt Sources and Vector Addresses............................................................ 71
Introduction ......................................................................................................... 72
Idle Mode ............................................................................................................ 72
Power-Down Mode ............................................................................................. 72
Registers............................................................................................................. 75
Registers............................................................................................................. 77
Description.......................................................................................................... 82
Notes .................................................................................................................. 85
Registers............................................................................................................. 95
Features.............................................................................................................. 98
Signal Description............................................................................................... 98
Functional Description ...................................................................................... 100
Using the WDT ................................................................................................. 107
WDT During Power Down and Idle................................................................... 108
Write Data......................................................................................................... 111
Read Data......................................................................................................... 113
Registers........................................................................................................... 114
AT89C51ID2
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