AT89LP828 Atmel Corporation, AT89LP828 Datasheet - Page 32
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AT89LP828
Manufacturer Part Number
AT89LP828
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT89LP428.pdf
(149 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89LP828-20AU
Manufacturer:
Atmel
Quantity:
360
Company:
Part Number:
AT89LP828-20MH
Manufacturer:
Atmel
Quantity:
720
Company:
Part Number:
AT89LP828-20PU
Manufacturer:
NXP
Quantity:
3 942
9.2
Table 9-2.
Table 9-3.
32
Symbol
EA
EC
ET2
ES
ET1
EX1
ET0
EX0
Symbol
IP0D
PC
PT2
PS
PT1
PX1
PT0
PX0
IE = A8H
Bit Addressable
Bit
IP = B8H
Bit Addressable
Bit
Interrupt Registers
AT89LP428/828
Function
Global enable/disable. All interrupts are disabled when EA = 0. When EA = 1, each interrupt source is
enabled/disabled by setting/clearing its own enable bit.
Comparator Interrupt Enable
Timer 2 Interrupt Enable
Serial Port Interrupt Enable
Timer 1 Interrupt Enable
External Interrupt 1 Enable
Timer 0 Interrupt Enable
External Interrupt 0 Enable
Function
Interrupt Priority 0 Disable. Set IP0D to 1 to disable all interrupts with priority level zero. Clear to 0 to enable all interrupts
with priority level zero when EA = 1.
Comparator Interrupt Priority Low
Timer 2 Interrupt Priority Low
Serial Port Interrupt Priority Low
Timer 1 Interrupt Priority Low
External Interrupt 1 Priority Low
Timer 0 Interrupt Priority Low
External Interrupt 0 Priority Low
IE – Interrupt Enable Register
IP – Interrupt Priority Register
IP0D
EA
7
7
PC
EC
6
6
ET2
PT2
5
5
ES
PS
4
4
ET1
PT1
3
3
EX1
PX1
2
2
Reset Value = 0000 0000B
Reset Value = 0000 0000B
ET0
PT0
1
1
3654A–MICRO–8/09
EX0
PX0
0
0