AT89C51ED2-RLRIM Atmel, AT89C51ED2-RLRIM Datasheet - Page 74
AT89C51ED2-RLRIM
Manufacturer Part Number
AT89C51ED2-RLRIM
Description
IC MCU FLASH 8051 64K 5V 44-VQFP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.ATWEBDVK-02RC.pdf
(137 pages)
Specifications of AT89C51ED2-RLRIM
Core Processor
8051
Core Size
8-Bit
Speed
60MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
34
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Other names
AT89C51ED2RLRIMTR
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AT89C51RD2/ED2
Table 17-3.
IEN0 - Interrupt Enable Register (A8h)
Reset Value = 0000 0000b
Bit addressable
Number
EA
Bit
7
7
6
5
4
3
2
1
0
Mnemonic
IENO Register
ET2
ET1
EX1
ET0
EX0
EC
Bit
EA
EC
ES
6
Description
Enable All interrupt bit
Cleared to disable all interrupts.
Set to enable all interrupts.
PCA interrupt enable bit
Cleared to disable.
Set to enable.
Timer 2 overflow interrupt Enable bit
Cleared to disable timer 2 overflow interrupt.
Set to enable timer 2 overflow interrupt.
Serial port Enable bit
Cleared to disable serial port interrupt.
Set to enable serial port interrupt.
Timer 1 overflow interrupt Enable bit
Cleared to disable timer 1 overflow interrupt.
Set to enable timer 1 overflow interrupt.
External interrupt 1 Enable bit
Cleared to disable external interrupt 1.
Set to enable external interrupt 1.
Timer 0 overflow interrupt Enable bit
Cleared to disable timer 0 overflow interrupt.
Set to enable timer 0 overflow interrupt.
External interrupt 0 Enable bit
Cleared to disable external interrupt 0.
Set to enable external interrupt 0.
ET2
5
ES
4
ET1
3
EX1
2
ET0
1
4235K–8051–05/08
EX0
0
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