Hitachi H8/3637 Hardware Manual page 327

Table A.3 Number of Cycles in Each Instruction
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 2.9.1, Notes on Data Access for
details.
326
On-Chip Memory
S 2
I
S
J
S
K
S
L
S
M
S 1
N
Access Location
On-Chip Peripheral Module
—
2 or 3*
—
1