AT89C5131-PLTIL ATMEL Corporation, AT89C5131-PLTIL Datasheet - Page 80

• Manufacturer Part Number: AT89C5131-PLTIL
• Description: 8-bit Flash Microcontroller with Full Speed USB Device
• Manufacturer: ATMEL Corporation

80
AT89C5131
Table 65. IEN1 Register
IEN1 - Interrupt Enable Register (B1h)
Reset Value = XXXX X000b
Bit addressable
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
EUSB
EUSB
ESPI
EKB
Bit
6
-
-
-
-
-
Description
Reserved
USB Interrupt Enable bit
Reserved
Reserved
Reserved
SPI interrupt Enable bit
Cleared to disable SPI interrupt.
Set to enable SPI interrupt.
Reserved
Keyboard interrupt Enable bit
Cleared to disable keyboard interrupt.
Set to enable keyboard interrupt.
5
-
4
-
3
-
ESPI
2
1
-
4136B–USB–09/03
EKB
0