Specifications

ii
3706C–MICRO–2/11
AT89LP3240/6440
Table of Contents (Continued)
7.4 Watchdog Reset ..............................................................................................36
7.5 Software Reset ................................................................................................36
8 Power Saving Modes ............................................................................. 36
8.1 Idle Mode .........................................................................................................36
8.2 Power-down Mode ...........................................................................................37
8.3 Reducing Power Consumption ........................................................................38
9 Interrupts ................................................................................................ 39
9.1 Interrupt Response Time .................................................................................41
10 I/O Ports .................................................................................................. 45
10.1 Port Configuration ............................................................................................45
10.2 Port Analog Functions .....................................................................................48
10.3 Port Read-Modify-Write ...................................................................................48
10.4 Port Alternate Functions ..................................................................................49
11 Enhanced Timer 0 and Timer 1 with PWM ........................................... 51
11.1 Mode 0 – Variable Width Timer/Counter .........................................................52
11.2 Mode 1 – 16-bit Auto-Reload Timer/Counter ...................................................52
11.3 Mode 2 – 8-bit Auto-Reload Timer/Counter .....................................................53
11.4 Mode 3 – 8-bit Split Timer ...............................................................................53
11.5 Pulse Width Modulation ...................................................................................56
12 Enhanced Timer 2 .................................................................................. 60
12.1 Timer 2 Registers ............................................................................................61
12.2 Capture Mode ..................................................................................................62
12.3 Auto-Reload Mode ...........................................................................................63
12.4 Baud Rate Generator ......................................................................................67
12.5 Frequency Generator (Programmable Clock Out) ...........................................68
13 Compare/Capture Array ........................................................................ 69
13.1 CCA Registers .................................................................................................70
13.2 Input Capture Mode .........................................................................................72
13.3 Output Compare Mode ....................................................................................75
13.4 Pulse Width Modulation Mode .........................................................................77
14 External Interrupts ................................................................................. 82
15 General-purpose Interrupts .................................................................. 83