SH7205 Datasheet, PDF (305/1904 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7200 Series

Section 10 Bus State Controller (BSC)
Initial
Bit
Bit Name Value R/W Description
15 to 0 
All 0 R
Reserved
These bits are always read as 0. The write value should
always be 0.
Notes: 1. The initial value of the BSIZE bits in CS0 differs depending on the MD0 pin setting.
2. The initial value of the EXENB bit in CS0 is 1.
To disable (EXENB = 0) the operation for each channel, forcibly write out data tentatively stored
in internal write buffer. The procedure is as follows:
1. Execute read access to the channel whose operation is to be disabled.
2. Then, write 0 to the EXENB bit (operation disabled).
Rev. 1.00 Mar. 25, 2008 Page 273 of 1868
REJ09B0372-0100