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AT89C51ID2-RDTIM Datasheet(PDF) 69 Page - ATMEL Corporation

Part # AT89C51ID2-RDTIM
Description  8-bit Flash Microcontroller
PDF  159 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C51ID2-RDTIM Datasheet(HTML) 69 Page - ATMEL Corporation

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AT89C51ID2
4289A–8051–09/03
Table 51. IEN1 Register
IEN1 - Interrupt Enable Register (B1h)
Reset Value = XXXX X000b
Bit addressable
7654
3210
----
-
ESPI
ETWI
EKBD
Bit
Number
Bit
Mnemonic
Description
7-
Reserved
6-
Reserved
5-
Reserved
4-
Reserved
3-
Reserved
2
ESPI
SPI interrupt Enable bit
Cleared to disable SPI interrupt.
Set to enable SPI interrupt.
1ETWI
TWI interrupt Enable bit
Cleared to disable TWI interrupt.
Set to enable TWI interrupt.
0EKBD
Keyboard interrupt Enable bit
Cleared to disable keyboard interrupt.
Set to enable keyboard interrupt.



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