AT89LP216 Atmel Corporation, AT89LP216 Datasheet - Page 96

• Manufacturer Part Number: AT89LP216
• Manufacturer: Atmel Corporation

Specifications of AT89LP216

• Flash (kbytes): 2 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 14
• Spi: 1
• Uart: 1
• Sram (kbytes): 0.125
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 2
• Isp: SPI/OCD
• Watchdog: Yes

Table of Contents (Continued)
ii
AT89LP216
11 Power Saving Modes ............................................................................. 16
12 Interrupts ................................................................................................ 18
13 I/O Ports .................................................................................................. 22
14 Enhanced Timer/Counters .................................................................... 27
15 External Interrupts ................................................................................. 36
16 General-purpose Interrupts .................................................................. 36
17 Serial Interface ....................................................................................... 38
18 Baud Rates ............................................................................................. 40
19 Serial Peripheral Interface ..................................................................... 49
20 Analog Comparator ............................................................................... 55
10.5
11.1
11.2
12.1
13.1
13.2
13.3
13.4
13.5
14.1
14.2
14.3
14.4
14.5
17.1
18.1
18.2
18.3
18.4
18.5
20.1
Software Reset ................................................................................................16
Idle Mode .........................................................................................................16
Power-down Mode ...........................................................................................16
Interrupt Response Time .................................................................................20
Port Configuration ............................................................................................22
Port 1 Analog Functions ..................................................................................25
Port Read-modify-write ....................................................................................25
Ports During Powerdown .................................................................................26
Port Alternate Functions ..................................................................................26
Mode 0 – Variable Width Timer/Counter .........................................................27
Mode 1 – 16-bit Auto-Reload Timer/Counter ...................................................28
Mode 2 – 8-bit Auto-reload Timer/Counter ......................................................29
Mode 3 – 8-bit Split Timer ...............................................................................29
Pulse Width Modulation ...................................................................................32
Multiprocessor Communications .....................................................................38
More About Mode 0 .........................................................................................41
More About Mode 1 .........................................................................................43
More About Modes 2 and 3 .............................................................................45
Framing Error Detection ..................................................................................48
Automatic Address Recognition ......................................................................48
Comparator Interrupt with Debouncing ............................................................55
3621E–MICRO–11/10