HD64F2149 Datasheet, PDF (840/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

Table A.4 Number of States per Cycle
Access Conditions
On-Chip
Supporting Module
External Device
8-Bit Bus
16-Bit Bus
Cycle
On-Chip 8-Bit
Memory Bus
16-Bit
Bus
2-State 3-State 2-State 3-State
Access Access Access Access
Instruction fetch
1
4
2
4
6 + 2m 2
3+m
S_I
Branch address fetch
S_J
Stack operation
S_K
Byte data access
2
2
3+m
S_L
Word data access
4
4
6 + 2m
S_M
Internal operation
1
1
1
1
1
1
1
S_N
Legend:
m: Number of wait states inserted into external device access
806