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HD6432351 bảng dữ liệu(PDF) 810 Page - Renesas Technology Corp

tên linh kiện HD6432351
Giải thích chi tiết về linh kiện  16-Bit Single-Chip Microcomputer
PDF  1025 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
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HD6432351 bảng dữ liệu(HTML) 810 Page - Renesas Technology Corp

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Appendix A Instruction Set
Rev. 3.00 Sep 15, 2006 page 776 of 988
REJ09B0330-0300
A.4
Number of States Required for Instruction Execution
The tables in this section can be used to calculate the number of states required for instruction
execution by the CPU. Table A.5 indicates the number of instruction fetch, data read/write, and
other cycles occurring in each instruction. Table A.4 indicates the number of states required for
each cycle. The number of states required for execution of an instruction can be calculated from
these two tables as follows:
Execution states = I
× SI + J × SJ + K × SK + L × SL + M × SM + N × SN
Examples: Advanced mode, program code and stack located in external memory, on-chip
supporting modules accessed in two states with 8-bit bus width, external devices accessed in three
states with one wait state and 16-bit bus width.
1. BSET #0, @FFFFC7:8
From table A.5:
I = L = 2, J = K = M = N = 0
From table A.4:
SI = 4, SL = 2
Number of states required for execution = 2
× 4 + 2 × 2 = 12
2. JSR @@30
From table A.5:
I = J = K = 2, L = M = N = 0
From table A.4:
SI = SJ = SK = 4
Number of states required for execution = 2
× 4 + 2 × 4 + 2 × 4 = 24



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