m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 533
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m37905
Manufacturer Part Number
m37905
Description
Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.M37905.pdf
(565 pages)
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APPENDIX
Appendix 6. Machine instructions
20-102
Notes for machine instructions table
The table lists the minimum number of instruction cycles for each instruction. The number of cycle is
changed by the following condition.
• The value of the low-order bytes of DPR (DPRn
• The number of bytes of instruction which fetched into the instruction queue buffer
• The address at read and write of memory (either even or odd)
• When the external area accessed in BYTE = Vcc level (at external data bus width 8 bits)
• The number of wait
Note 1. The op code at the upper row is used for accumulator A, and the op code at the lower row is
Note 2. When handing 16-bit data with flag m = 0 in the immediate addressing mode, add 1 to the numder
Note 3. When handing 16-bit data with flag m = 0, add 1 to the numder of bytes.
Note 4. Imm is the immediate value specified with an operand (imm = 0–31).
Note 5. The op code at the upper row is used for branching in the range of –128 to +127, and the op
Note 6. The BRK instruction is a instruction for debugger; it cannot be used.
Note 7. Any value from 0 through 15 is placed in an “n.”
Note 8. When handling 16-bit data with flag x = 0 in the immediate addressing mode, add 1 to the numder
Note 9. The number of cycles is the case of the 16-bit ÷ 8-bit operation. In the case of the 32-bit ÷
Note 10. When a zero division interrupt occurs, the number of cycles is 16 cycles. It is regardless of the
Note 11. When placing a value in any of DPRs, the op code at the upper row is applied. When placing
Note 12. A “?” indicates to the value of 4 bits which the bit corressing to the specified DPRn becomes “1.”
Note 13. When the source is in the immediate addressing mode and flag m = 0, add n (n = 0 to 15) to
Note 14. The number of cycles of the case of the 8-bit
The number of cycle of the addressing mode related with DPRn (n = 0 to 3) is applied when DPRn = 0.
When DPRn
used for accumulator B.
of bytes.
code at the lower row is used for branching in the range of –32768 to +32767.
of bytes.
16-bit operation, add 8 to the number of cycles.
data length.
values to multiple DPRs, the op code at the lower row is applied. The letter “i” represents the
number of DPRn specified: 1 to 4.
the number of bytes.
16-bit operation, add 4 to the number of cycles.
0, add 1 to the number of cycles.
7905 Group User’s Manual Rev.1.0
L
)
8-bit operation. In the case of the 16-bit
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