h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 175

• Manufacturer Part Number: h8s-2161b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

This LSI has an on-chip bus controller (BSC) that manages the bus width and the number of
access states of the external address space. The BSC also has a bus arbitration function, and
controls the operation of the internal bus masters – CPU, and data transfer controller (DTC).
6.1
BSCS20AA_000020020700
Basic bus interface
2-state access or 3-state access can be selected for each area
Program wait states can be inserted for each area
Burst ROM interface
A burst ROM interface can be set for basic expansion areas
1-state access or 2-state access can be selected for burst access
Idle cycle insertion
An idle cycle can be inserted for external write cycles immediately after external read cycles
Bus arbitration function
Includes a bus arbiter that arbitrates bus mastership between the CPU and DTC
Features
Section 6 Bus Controller (BSC)
Rev. 3.00 Mar 21, 2006 page 121 of 788
Section 6 Bus Controller (BSC)
REJ09B0300-0300