AT89C51ID2-SMSIM ATMEL [ATMEL Corporation], AT89C51ID2-SMSIM Datasheet - Page 157

• Manufacturer Part Number: AT89C51ID2-SMSIM
• Description: 8-bit Flash Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

4289A–8051–09/03
Serial I/O Port ...................................................................................... 53
Interrupt System ................................................................................. 64
Power Management ............................................................................ 73
Keyboard Interface ............................................................................. 77
2-wire Interface (TWI) ......................................................................... 81
Serial Port Interface (SPI)................................................................... 99
Hardware Watchdog Timer .............................................................. 108
ONCE(TM) Mode (ON Chip Emulation) ........................................... 110
Power-off Flag................................................................................... 111
EEPROM Data Memory..................................................................... 112
Pulse Width Modulator Mode.............................................................................. 51
PCA Watchdog Timer ......................................................................................... 52
Framing Error Detection ..................................................................................... 53
Automatic Address Recognition.......................................................................... 54
Registers............................................................................................................. 56
Baud Rate Selection for UART for Mode 1 and 3............................................... 56
UART Registers.................................................................................................. 59
Registers............................................................................................................. 65
Interrupt Sources and Vector Addresses............................................................ 72
Introduction ......................................................................................................... 73
Idle Mode ............................................................................................................ 73
Power-Down Mode ............................................................................................. 73
Registers............................................................................................................. 76
Registers............................................................................................................. 78
Description.......................................................................................................... 83
Notes .................................................................................................................. 86
Registers............................................................................................................. 96
Features.............................................................................................................. 99
Signal Description............................................................................................... 99
Functional Description ...................................................................................... 101
Using the WDT ................................................................................................. 108
WDT During Power Down and Idle................................................................... 109
Write Data......................................................................................................... 112
Read Data......................................................................................................... 114
Registers........................................................................................................... 115
AT89C51ID2
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