AT89LP828 Atmel Corporation, AT89LP828 Datasheet - Page 75

• 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

Figure 15-1. GPI Block Diagram
.
Table 15-1.
3654A–MICRO–8/09
GPMOD = 9AH
Not Bit Addressable
Bit
(P1.7) GPI7
(P1.6) GPI6
(P1.5) GPI5
(P1.4) GPI4
(P1.3) GPI3
(P1.2) GPI2
(P1.1) GPI1
(P1.0) GPI0
GPMOD.x
GPMOD7
GPMOD
7
– General-purpose Interrupt Mode Register
0 = level-sensitive interrupt for P1.x
1 = edge-triggered interrupt for P1.x
GPMOD6
6
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
GPLS
7
6
5
4
3
2
1
0
GPMOD5
5
GPMOD
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
7
6
5
4
3
2
1
0
GPMOD4
4
7
6
5
4
3
2
1
0
GPIEN
CLK
GPMOD3
3
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
GPIF
GPMOD2
7
6
5
4
3
2
1
0
2
Reset Value = 0000 0000B
GPMOD1
AT89LP428/828
1
GPMOD0
Interrupt
0
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