AT83C5122_08 ATMEL [ATMEL Corporation], AT83C5122_08 Datasheet - Page 161

• Manufacturer Part Number: AT83C5122_08
• Description: C51 Microcontroller with USB and Smart Card Reader Interfaces
• Manufacturer: ATMEL [ATMEL Corporation]

4202F–SCR–07/2008
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
-
AT83R5122, AT8xC5122/23
4
-
ESCI
3
ESPI
2
1
-
EKB
0
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