Datasheet

iv
8024A–AVR–04/08
ATmega8HVA/16HVA
19.6Configuration and Usage .....................................................................................107
19.7Register Description ............................................................................................107
20 Voltage ADC – 5-channel General Purpose 12-bit Sigma-Delta ADC 112
20.1Features ..............................................................................................................112
20.2Overview ..............................................................................................................112
20.3Operation .............................................................................................................112
20.4Register Description ............................................................................................114
21 Voltage Reference and Temperature Sensor .................................... 117
21.1Features ..............................................................................................................117
21.2Overview ..............................................................................................................117
21.3Register Description ............................................................................................118
22 Voltage Regulator ................................................................................ 120
22.1Features ..............................................................................................................120
22.2Overview ..............................................................................................................120
22.3Voltage Regulator Monitor ...................................................................................123
22.4Register Description ............................................................................................123
23 Battery Protection ................................................................................ 124
23.1Features ..............................................................................................................124
23.2Overview ..............................................................................................................124
23.3Short-circuit Protection ........................................................................................125
23.4Discharge Over-current Protection ......................................................................125
23.5Charge Over-current Protection ..........................................................................125
23.6Discharge High-current Protection ......................................................................125
23.7Charge High-current Protection ...........................................................................126
23.8Battery Protection CPU Interface ........................................................................126
23.9Register Description ............................................................................................127
24 FET Control ........................................................................................... 135
24.1Overview ..............................................................................................................135
24.2FET Driver ...........................................................................................................136
24.3DUVR – Deep Under-Voltage Recovery Mode operation ...................................137
24.4Register Description ............................................................................................138
25 debugWIRE On-chip Debug System .................................................. 139
25.1Features ..............................................................................................................139
25.2Overview ..............................................................................................................139