ATmega32HVB datasheet(268/273 Pages) ATMEL

268 / 273 page

iii

8042A–AVR–07/09

ATmega16HVB/32HVB

15.2Low Voltage Ports as General Digital I/O ..............................................................68

15.3Alternate Port Functions ........................................................................................72

15.4Register Description ..............................................................................................78

Timer/Counter0 and Timer/Counter1 Prescalers ................................ 79

16.1Overview ................................................................................................................79

16.2External Clock Source ...........................................................................................80

16.3Register Description ..............................................................................................81

Timer/Counter (T/C0,T/C1) ..................................................................... 82

17.1Features ................................................................................................................82

17.2Overview ................................................................................................................82

17.3Timer/Counter Clock Sources ...............................................................................83

17.4Counter Unit ..........................................................................................................83

17.5Modes of Operation ...............................................................................................84

17.6Input Capture Unit .................................................................................................86

17.7Output Compare Unit .............................................................................................88

17.8Timer/Counter Timing Diagrams ...........................................................................89

17.9Accessing Registers in 16-bit Mode ......................................................................90

17.10Register Description ............................................................................................94

SPI – Serial Peripheral Interface ........................................................... 98

18.1Features ................................................................................................................98

18.2Overview ................................................................................................................98

18.3SS Pin Functionality ............................................................................................103

18.4Data Modes .........................................................................................................103

18.5Register Description ............................................................................................105

Coulomb Counter - Dedicated Fuel Gauging Sigma-delta ADC ...... 108

19.1Features ..............................................................................................................108

19.2Overview ..............................................................................................................108

19.3Normal Operation ................................................................................................109

19.4Regular Current Detection Operation ..................................................................110

19.5Offset Canceling by Polarity Switching ................................................................110

19.6Configuration and Usage .....................................................................................111

19.7Register Description ............................................................................................111

Voltage ADC – 7-channel General Purpose 12-bit Sigma-Delta ADC 117

20.1Features ..............................................................................................................117

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