AT89LP828 Atmel Corporation, AT89LP828 Datasheet - Page 76

• Manufacturer Part Number: AT89LP828
• Manufacturer: Atmel Corporation

Specifications of AT89LP828

• Flash (kbytes): 8 Kbytes
• Max. Operating Frequency: 25 MHz
• Cpu: 8051-1C
• Max I/o Pins: 30
• Spi: 1
• Uart: 1
• Sram (kbytes): 0.75
• Eeprom (bytes): 1024
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 3
• Isp: SPI/OCD
• Watchdog: Yes

Table 15-2.
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Table 15-3.
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Table 15-4.
76
GPLS = 9BH
Not Bit Addressable
Bit
GPIEN = 9CH
Not Bit Addressable
Bit
GPIF = 9DH
Not Bit Addressable
Bit
AT89LP428/828
GPMOD.x
GPLS
GPIEN
GPIF
GPIEN.x
GPIEN7
GPLS7
GPIF7
GPIF.x
7
7
7
– General-purpose Interrupt Flag Register
– General-purpose Interrupt Level Select Register
– General-purpose Interrupt Enable Register
0 = detect low level or negative edge on P1.x
1 = detect high level or positive edge on P1.x
0 = interrupt for P1.x disabled
1 = interrupt for P1.x enabled
0 = interrupt on P1.x inactive
1 = interrupt on P1.x active. Must be cleared by software.
GPIEN6
GPLS6
GPIF6
6
6
6
GPIEN5
GPLS5
GPIF5
5
5
5
GPIEN4
GPLS4
GPIF4
4
4
4
GPIEN3
GPLS3
GPIF3
3
3
3
GPIEN2
GPLS2
GPIF2
2
2
2
Reset Value = 0000 0000B
Reset Value = 0000 0000B
Reset Value = 0000 0000B
GPIEN1
GPLS1
GPIF1
1
1
1
GPIEN0
GPLS0
GPIF0
3654A–MICRO–8/09
0
0
0