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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SH7713 датащи(PDF) 116 Page - Renesas Technology Corp |
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SH7713 датащи(HTML) 116 Page - Renesas Technology Corp |
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116 / 904 page  Section 3 DSP Operating Unit Rev.1.50 Aug. 30, 2006 Page 76 of 860 REJ09B0288-0150 • In privileged and privileged DSP modes, all SR bits can be modified. • In user DSP mode, the SR can be read by the STC instruction. • In user DSP mode, the LDC instruction can be issued to the SR but only the DSP extension bits can be modified. Table 3.2 Operation of SR Bits in Each Processing Mode Privileged Mode User Mode Privileged DSP Mode User DSP Mode Field MD = 1 & DSP = 0 MD = 0 & DSP = 0 MD = 1 & DSP = 1 MD = 0 & DSP = 1 Access to DSP-Related Bit with Dedicated Instruction Initial Value after Reset MD S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG 1 RB S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG 1 BL S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG 1 RC [11:0] S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: OK SETRC instruction 000000000000 DSP S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG 0 DMY S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: OK 0 DMX S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: OK 0 Q S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG x M S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG x I[3:0] S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG 1111 RF[1:0] S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: OK SETRC instruction x S S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG x T S: OK, L: OK S, L: Invalid instruction S: OK, L: OK S: OK, L: NG x [Legend] S: STC instruction L: LDC instruction OK: STC/LDC operation is enabled. Invalid instruction: Exception occurs when an invalid instruction is executed. NG: Previous value is retained. No change. x: Undefined |
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