CHAPTER 4 BUS CONTROL FUNCTION
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User’s Manual U14359EJ4V0UM
4.5
Bus Access
4.5.1 Number of access clocks
The number of basic clocks necessary for accessing each resource is as follows.
Bus Cycle Configuration
Resource (Bus Width)
Instruction Fetch
Operand Data Access
Internal ROM (32 bits)
1
Note 1
5
Internal RAM (32 bits)
1
Note 2
1
Notes 1.
2 for a branch instruction
2.
2 if bus access contends with a data access
Remark
Unit: Clock/access
