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T80C5112-RKFEV 数据表(PDF) 29 Page - ATMEL Corporation

部件名 T80C5112-RKFEV
功能描述  8-bit Microcontroller with A/D converter
PDF  97 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

T80C5112-RKFEV 数据表(HTML) 29 Page - ATMEL Corporation

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Rev. B - November 10, 2000
29
Preliminary
T80C5112
Table 17. AUXR1: Auxiliary Register 1
User software should not write 1s to reserved bits. These bits may be used in future 8051 family products to invoke new feature. In that case, the reset
value of the new bit will be 0, and its active value will be 1. The value read from a reserved bit is indeterminate.
Application
Software can take advantage of the additional data pointers to both increase speed and reduce code size, for
example, block operations (copy, compare, search ...) are well served by using one data pointer as a ÕsourceÕ
pointer and the other one as a "destination" pointer.
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
DPS
Bit Number
Bit
Mnemonic
Description
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
5
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
4
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
3
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
2
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
1
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
0
DPS
Data Pointer Selection
Clear to select DPTR0.
Set to select DPTR1.



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