SH7619_09 Datasheet, PDF (174/860 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7619 Series

Section 7 Bus State Controller (BSC)
Initial
Bit
Bit Name Value R/W Description
2

0
R
Reserved
This bit is always read as 0. The write value should
always be 0.
1
WTRC1 0
R/W Idle Cycle Number from REF Command/Self-Refreshing
0
WTRC0 0
R/W ^{Release to ACTV/REF/MRS Command}
Specify the number of minimum idle cycles in the
following cases.
• From the issuing of the REF command to the issuing
of the ACTV/REF/MRS command.
• From the self-refreshing release to the issuing of the
ACTV/REF/MRS command.
00: 2 cycles
01: 3 cycles
10: 5 cycles
11: 8 cycles
PCMCIA:
• CS5BWCR, CS6BWCR
Initial
Bit
Bit Name Value R/W
31 to 22 
All 0 R
21
SA1
0
R/W
20
SA0
0
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
Space Attribute Specification
Specify memory card interface or I/O card interface when
the PCMCIA interface is selected.
• SA1
0: Specifies memory card interface when A25 = 1
1: Specifies I/O card interface when A25 = 1
• SA0
0: Specifies memory card interface when A25 = 0
1: Specifies I/O card interface when A25 = 0
Rev. 6.00 Jul. 15, 2009 Page 134 of 816
REJ09B0237-0600