Contents
6.9 Timer ................................................................................................................ 52
6.9.1 Overview ...........................................................................................................52
6.9.2 Function Description..........................................................................................53
6.9.3 Programming the Related Registers.................................................................54
6.9.4 Timer Programming Process/Steps...................................................................54
6.10 Comparator ...................................................................................................... 54
6.10.1 External Reference Signal ................................................................................55
6.10.2 Comparator Outputs..........................................................................................55
6.10.3 Using Comparator as an Operation Amplifier....................................................56
6.10.4 Comparator Interrupt.........................................................................................56
6.10.5 Wake-up from SLEEP Mode .............................................................................56
6.11 Oscillator .......................................................................................................... 56
6.11.1 Oscillator Modes................................................................................................56
6.11.2 Crystal Oscillator/Ceramic Resonators (XTAL).................................................57
6.11.3 External RC Oscillator Mode.............................................................................58
6.11.4 Internal RC Oscillator Mode..............................................................................59
6.12 Power-on Considerations................................................................................. 60
6.12.1 External Power-on Reset Circuit.......................................................................60
6.12.2 Residual Voltage Protection..............................................................................61
6.13 Code Option ..................................................................................................... 61
6.13.1 Code Option Register (Word 0).........................................................................62
6.13.2 Code Option Register (Word 1).........................................................................63
6.13.3 Customer ID Register (Word 2).........................................................................64
6.14 Instruction Set .................................................................................................. 64
7
8
Absolute Maximum Ratings................................................................................... 66
DC Electrical Characteristics................................................................................. 67
8.1 AD Converter Characteristic............................................................................. 68
8.2 Comparator (OP) Characteristic....................................................................... 69
8.3 Device Characteristics...................................................................................... 69
AC Electrical Characteristic................................................................................... 70
9
10 Timing Diagrams..................................................................................................... 71
Product Specification (V1.0) 06.23.2005
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ELAN [ ELAN MICROELECTRONICS CORP ]
