h8s-2635 Renesas Electronics Corporation., h8s-2635 Datasheet - Page 1188

• Manufacturer Part Number: h8s-2635
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
• Manufacturer: Renesas Electronics Corporation.

Appendix A Instruction Set
A.4
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:
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
2. JSR @@30
Number of states required for execution = 2 4 + 2 4 + 2 4 = 24
Rev. 6.00 Feb 22, 2005 page 1128 of 1484
REJ09B0103-0600
From table A-5:
I = L = 2, J = K = M = N = 0
From table A-4:
S
Number of states required for execution = 2 4 + 2 2 = 12
From table A-5:
I = J = K = 2, L = M = N = 0
From table A-4:
S
Execution states = I S
I
I
= 4, S
= S
J
Number of States Required for Instruction Execution
= S
L
K
= 2
= 4
I
+ J
S
J
+ K S
K
+ L S
L
+ M
S
M
+ N S
N