HD6475348R Datasheet, PDF (396/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

• Examples of Calculation of Number of States Required for Execution
(Example 1) Instruction fetch from on-chip memory: ADD:G.W @R0, R1
Operand
Read/Write
On-chip memory
or general register
Start
Addr.
Even
Odd
Assembler Notation
Table A-7 + Number
Address Code Mnemonic
Table A-8 of States
H'0100 H'D821 ADD:G.W @R0, R1 5 + 1
6
H'0101 H'D821 ADD:G.W @R0, R1 5 + 0
5
(Example 2) Instruction fetch from on-chip memory: JSR @R0
Branch
Addr.
Even
Odd
Assembler Notation
Address
Code
Mnemonic
H'FC00
H'11D8
JSR @R0
H'FC01
H'11D8
JSR @R0
Table A-7 +
Table A-8 + 2I
9+0+2×2
9+1+2×2
Number
of States
13
14
(Example 3) Instruction fetch from external memory
Operand
Read/Write
On-chip memory or
general register
On-chip module
or external
memory
Assembler Notation
Address Code Mnemonic
H'9002 H'D821 ADD:G.W @R0, R1
Table A-7 +
2(J + K)
5 + 2 × (1 + 1)
Number
of States
9
H'9002 H'D821 ADD:G.W @R0, R1 5 + 2 × (2 + 1 + 1) 13
386