поискавой системы для электроныых деталей |
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TS87C54X2 датащи(PDF) 11 Page - ATMEL Corporation |
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TS87C54X2 датащи(HTML) 11 Page - ATMEL Corporation |
11 / 58 page Rev. C - 15 January, 2001 11 TS80C54X2/C58X2 TS87C54X2/C58X2 Table 5. AUXR1: Auxiliary Register 1 Reset Value = XXXX 00X0 Not bit addressable 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 ’source’ pointer and the other one as a "destination" pointer. 7 6 5 4 3 2 1 0 - - - - GF3 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 GF3 This bit is a general purpose user flag 2 0 Reserved Always stuck at 0. 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. |
Аналогичный номер детали - TS87C54X2 |
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Аналогичное описание - TS87C54X2 |
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