ATA5771_09 ATMEL [ATMEL Corporation], ATA5771_09 Datasheet - Page 274

• Manufacturer Part Number: ATA5771_09
• Description: Microcontroller with UHF ASK/FSK Transmitter
• Manufacturer: ATMEL [ATMEL Corporation]

1
2
3
4
5
6
7
7701C–AVR–05/08
Features ..................................................................................................... 1
Pin Configurations ................................................................................... 2
Overview ................................................................................................... 3
Resources ................................................................................................. 6
About Code Examples ............................................................................. 6
CPU Core .................................................................................................. 7
Memories ................................................................................................ 15
System Clock and Clock Options ......................................................... 25
1.1 Disclaimer ................................................................................................................2
2.1 Block Diagram .........................................................................................................3
2.2 Automotive Quality Grade .......................................................................................4
2.3 Pin Descriptions .......................................................................................................5
5.1 Overview ..................................................................................................................7
5.2 Architectural Overview .............................................................................................7
5.3 ALU – Arithmetic Logic Unit .....................................................................................8
5.4 Status Register ........................................................................................................8
5.5 General Purpose Register File ..............................................................................10
5.6 Stack Pointer .........................................................................................................11
5.7 Instruction Execution Timing .................................................................................12
5.8 Reset and Interrupt Handling .................................................................................12
6.1 In-System Re-programmable Flash Program Memory ..........................................15
6.2 SRAM Data Memory ..............................................................................................15
6.3 EEPROM Data Memory ........................................................................................17
6.4 I/O Memory ............................................................................................................21
6.5 Register Description ..............................................................................................22
7.1 Clock Systems and their Distribution .....................................................................25
7.2 Clock Sources .......................................................................................................26
7.3 Default Clock Source .............................................................................................26
7.4 Crystal Oscillator ...................................................................................................26
7.5 Low-frequency Crystal Oscillator ...........................................................................28
7.6 Calibrated Internal RC Oscillator ...........................................................................29
7.7 External Clock .......................................................................................................29
7.8 128 kHz Internal Oscillator ....................................................................................31
7.9 System Clock Prescaler ........................................................................................31
ATtiny24/44/84
1