AT89LP214 Atmel Corporation, AT89LP214 Datasheet - Page 96

• Manufacturer Part Number: AT89LP214
• Manufacturer: Atmel Corporation

Specifications of AT89LP214

• Flash (kbytes): 2 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 12
• Spi: 1
• Uart: 1
• Sram (kbytes): 0.125
• Operating Voltage (vcc): 2.4 to 5.0
• Timers: 2
• Isp: SPI/OCD
• Watchdog: Yes

Table of Contents (Continued)
ii
AT89LP213/214
11 Power Saving Modes ............................................................................. 17
12 Interrupts ................................................................................................ 19
13 I/O Ports .................................................................................................. 23
14 Enhanced Timer/Counters .................................................................... 28
15 External Interrupts ................................................................................. 37
16 General-purpose Interrupts .................................................................. 37
17 Serial Interface ....................................................................................... 39
18 Serial Peripheral Interface ..................................................................... 50
19 Analog Comparator ............................................................................... 56
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
17.2
17.3
17.4
17.5
17.6
17.7
19.1
Software Reset ................................................................................................17
Idle Mode .........................................................................................................17
Power-down Mode ...........................................................................................17
Interrupt Response Time .................................................................................21
Port Configuration ............................................................................................24
Port 1 Analog Functions ..................................................................................26
Port Read-modify-write ....................................................................................27
Ports During Powerdown .................................................................................27
Port Alternate Functions ..................................................................................27
Mode 0 – Variable Width Timer/Counter .........................................................29
Mode 1 – 16-bit Auto-Reload Timer/Counter ...................................................30
Mode 2 – 8-bit Auto-reload Timer/Counter ......................................................30
Mode 3 – 8-bit Split Timer ...............................................................................31
Pulse Width Modulation ...................................................................................33
Multiprocessor Communications .....................................................................39
Baud Rates ......................................................................................................41
More About Mode 0 .........................................................................................42
More About Mode 1 .........................................................................................44
More About Modes 2 and 3 .............................................................................46
Framing Error Detection ..................................................................................49
Automatic Address Recognition ......................................................................49
Comparator Interrupt with Debouncing ............................................................56
3538E–MICRO–11/10