SH7046 Datasheet, PDF (173/611 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7046 Series

Section 9 Bus State Controller (BSC)
Section 9 Bus State Controller (BSC)
The bus state controller (BSC) provides an access control function to the on-chip ROM, RAM and
peripheral module register.
9.1 Features
The BSC has the following features:
• Bus arbitration between CPU and DTC
• On-chip ROM and RAM interfaces
 On-chip ROM and RAM access of 32 bits in 1 state
• On-chip module I/O register access control
9.2 Input/Output Pin
This LSI has no input/output pin for the BSC module.
9.3 Register Configuration
The BSC has four registers. For details on these register addresses and register states in each
processing states, refer to appendix A, Internal I/O Register.
• Bus control register 1 (BCR1)
• RAM emulation register (RAMER)
BSC1000B_000020020700
Rev. 4.00 Dec 05, 2005 page 129 of 564
REJ09B0270-0400