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AT89C51RB2/RC2

4180E–8051–10/06

Table 47. IEN1 Register

IEN1 - Interrupt Enable Register (B1h)

Reset Value = XXXX X000b

Bit addressable

76543210

-----ESPI-KBD

Bit

Number

Bit

Mnemonic Description

7-Reserved

6-Reserved

5-Reserved

4-Reserved

3-Reserved

2ESPI

SPI Interrupt Enable Bit

Cleared to disable SPI interrupt.

Set to enable SPI interrupt.

1-Reserved

0 KBD

Keyboard Interrupt Enable Bit

Cleared to disable keyboard interrupt.

Set to enable keyboard interrupt.

1 2 ... 55 56 57 58 59 60 61 62 63 64 65 ... 126 127

Features 1
Description 1
AT89C51RB2/RC2 10
Table of Contents 124
Regional Headquarters 127

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Atmel C51 Scheda Tecnica Pagina 60

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