US38024-BAG1 Renesas Electronics America, US38024-BAG1 Datasheet - Page 563

• Manufacturer Part Number: US38024-BAG1
• Description: DEV EVALUATION KIT H8/38024
• Manufacturer: Renesas Electronics America
• Series: H8®r
• Type: MCUr

Specifications of US38024-BAG1

• Contents: 2G (Second-generation) Evaluation Board, HEW debugger support, Cable and CD-ROM
• For Use With/related Products: H8/38024
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

A.3
The tables here can be used to calculate the number of states required for instruction execution.
Table A.4 indicates the number of states required for each cycle (instruction fetch, read/write,
etc.), and table A.3 indicates the number of cycles of each type occurring in each instruction. The
total number of states required for execution of an instruction can be calculated from these two
tables as follows:
Execution states = I × S
Examples: When instruction is fetched from on-chip ROM, and an on-chip RAM is accessed.
BSET #0, @FF00
From table A.4:
I = L = 2,
From table A.3:
S
Number of states required for execution = 2 × 2 + 2 × 2 = 8
When instruction is fetched from on-chip ROM, branch address is read from on-chip ROM, and
on-chip RAM is used for stack area.
JSR @@ 30
From table A.4:
I = 2,
From table A.3:
S
Number of states required for execution = 2 × 2 + 1 × 2+ 1 × 2 = 8
Table A.3
Execution Status
(instruction cycle)
Instruction fetch
Branch address read
Stack operation
Byte data access
Word data access
Internal operation
Note: * Depends on which on-chip module is accessed. See section 2.9.1, Notes on Data Access
I
I
= 2,
= S
J
= S
J = K = 1,
for details.
S
Number of Execution States
K
L
= 2
= 2
J = K = M = N= 0
Number of Cycles in Each Instruction
L = M = N = 0
I
+ J × S
S
S
S
S
S
S
I
J
K
L
M
N
J
+ K × S
On-Chip Memory
2
1
K
+ L × S
L
+ M × S
Rev. 8.00 Mar. 09, 2010 Page 541 of 658
Access Location
M
+ N × S
On-Chip Peripheral Module
—
2 or 3 *
—
Appendix A CPU Instruction Set
N
REJ09B0042-0800