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AT89C5122DS-RDRUM Fiches technique(PDF) 164 Page - ATMEL Corporation

No de pièce AT89C5122DS-RDRUM
Description  C51 Microcontroller with USB and Smart Card Reader Interfaces
PDF  208 Pages
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Fabricant  ATMEL [ATMEL Corporation]
Site Internet  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C5122DS-RDRUM Fiches technique(HTML) 164 Page - ATMEL Corporation

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AT83R5122, AT8xC5122/23
4202F–SCR–07/2008
Reset Value = X00X 00X0b (Bit addressable)
Table 103.
Interrupt Priority Low Register 1 - IPL1 (B2h) for AT8xC5122
7654
3210
-
PUSBL
-
-
PSCIL
PSPIL
-
PKBDL
Bit
Number
Bit
Mnemonic Description
7-
Reserved
The value read from this bit is indeterminate. Do not change this bit.
6PUSBL
USB Interrupt Priority bit
Refer to PUSBH for priority level.
5 - 4
-
Reserved
The value read from this bit is indeterminate. Do not change these bits.
3PSCIL
SCI Interrupt Priority bit
Refer to PSPIH for priority level.
2
PSPIL
SPI Interrupt Priority bit
Refer to PSPIH for priority level.
1-
Reserved
The value read from this bit is indeterminate. Do not change this bit.
0PKBL
Keyboard Interrupt Priority bit
Refer to PKBDH for priority level.



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