Rainbow-electronics AT89C5132 Manual de usuario descargar pdf (Pagina 41)

AT8xC5132

4173A–8051–08/02

Table 51. IEN1 Register

IEN1 (S:B1h) – Interrupt Enable Register 1

Reset Value = 0000 0000b

76543210

-EUSB– EKB EADC ESPI EI2C EMMC

Bit

Number

Bit

Mnemonic Description

Reserved

The values read from this bit is always 0. Do not set this bit.

6EUSB

USB Interface Interrupt Enable Bit

Set this bit to enable USB interrupts.

Clear this bit to disable USB interrupts.

5 –

Reserved

The values read from this bit is always 0. Do not set this bit.

4EKB

Keyboard Interface Interrupt Enable Bit

Set to enable Keyboard interrupt.

Clear to disable Keyboard interrupt.

3 EADC

A-to-D Converter Interrupt Enable Bit

Set to enable ADC interrupt.

Clear to disable ADC interrupt.

2ESPI

SPI Controller Interrupt Enable Bit

Set to enable SPI interrupt.

Clear to disable SPI interrupt.

1EI2C

Reserved

The values read from this bit is always 0. Do not set this bit.

0EMMC

MMC Interface Interrupt Enable Bit

Set to enable MMC interrupt.

Clear to disable MMC interrupt.

1 2 ... 36 37 38 39 40 41 42 43 44 45 46 ... 161 162

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Rainbow-electronics AT89C5132 Manual de usuario Pagina 41