89C51IC2-CM ATMEL [ATMEL Corporation], 89C51IC2-CM Datasheet - Page 144

• Manufacturer Part Number: 89C51IC2-CM
• Description: 8-bit Flash Microcontroller with 2-wire Interface
• Manufacturer: ATMEL [ATMEL Corporation]

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AT89C51IC2
Power Management ............................................................................ 67
Serial Port Interface (SPI) ................................................................... 71
Keyboard Interface ............................................................................. 80
2-wire Interface (TWI) ......................................................................... 84
Hardware Watchdog Timer .............................................................. 102
Power-off Flag ................................................................................... 104
ONCE(TM) Mode (ON Chip Emulation) ........................................... 105
Reduced EMI Mode ........................................................................... 106
Flash EEPROM Memory ................................................................... 107
Electrical Characteristics ................................................................. 128
Reset .................................................................................................................. 67
Reset Recommendation to Prevent Flash Corruption ........................................ 69
Idle Mode ............................................................................................................ 69
Power-down Mode.............................................................................................. 69
Features.............................................................................................................. 71
Signal Description............................................................................................... 71
Functional Description ........................................................................................ 73
Registers............................................................................................................. 81
Description.......................................................................................................... 86
Notes .................................................................................................................. 89
Registers............................................................................................................. 99
Using the WDT ................................................................................................. 102
WDT During Power Down and Idle................................................................... 103
Features............................................................................................................ 107
Flash Programming and Erasure...................................................................... 107
Flash Registers and Memory Map.................................................................... 108
Flash Memory Status........................................................................................ 111
Memory Organization ....................................................................................... 111
Bootloader Architecture .................................................................................... 112
ISP Protocol Description................................................................................... 116
Functional Description ...................................................................................... 117
Flow Description ............................................................................................... 118
API Call Description.......................................................................................... 126
Absolute Maximum Ratings ..............................................................................128
DC Parameters for Standard Voltage ............................................................... 128
DC Parameters for Low Voltage ....................................................................... 130
AC Parameters ................................................................................................. 132
4301A–8051–01/04