AT89C5122 ATMEL [ATMEL Corporation], AT89C5122 Datasheet - Page 163

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AT89C5122

Manufacturer Part Number
AT89C5122
Description
MICROCONTROLLER WITH USB AND SMART CARD READER INTERFACES
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet

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4202D–SCR–06/05
Table 99. Interrupt Enable Register 1 - IEN1 (B1h) for AT8xC5122
Reset Value = X0XX 00X0b (Bit addressable)
Number
5 - 4
Bit
7
7
6
3
2
1
0
-
Mnemonic Description
EUSB
EUSB
ESCI
ESPI
EKB
Bit
6
-
-
-
Reserved
The value read from this bit is indeterminate. Do not change this bit.
USB Interrupt Enable bit
Cleared to disable USB interrupt .
Set to enable USB interrupt.
Reserved
The value read from this bit is indeterminate. Do not change these bits.
SCI interrupt Enable bit
Cleared to disable SCIinterrupt .
Set to enable SCI interrupt.
SPI interrupt Enable bit
Cleared to disable SPI interrupt .
Set to enable SPI interrupt.
Reserved
The value read from this bit is indeterminate. Do not change this bit.
Keyboard interrupt Enable bit
Cleared to disable keyboard interrupt .
Set to enable keyboard interrupt.
5
-
4
-
ESCI
3
ESPI
2
1
-
EKB
0
163

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