SH7211 Datasheet, PDF (240/1228 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family

Section 8 Bus State Controller (BSC)
Bit
12
11, 10
9
8, 7
6, 5
Bit Name
⎯
Initial
Value
0
WTRCD[1:0] 01
⎯
0
A3CL[1:0] 10
⎯
All 0
R/W
R
R/W
R
R/W
R
Description
Reserved
This bit is always read as 0. The write value should
always be 0.
Number of Wait Cycles between ACTV Command and
READ(A)/WRIT(A) Command
Specify the minimum number of wait cycles from
issuing the ACTV command to issuing the
READ(A)/WRIT(A) command. The setting for areas 2
and 3 is common.
00: No cycle
01: 1 cycle
10: 2 cycles
11: 3 cycles
Reserved
This bit is always read as 0. The write value should
always be 0.
CAS Latency for Area 3
Specify the CAS latency for area 3.
00: 1 cycle
01: 2 cycles
10: 3 cycles
11: 4 cycles
Reserved
These bits are always read as 0. The write value
should always be 0.
Rev. 2.00 May. 08, 2008 Page 216 of 1200
REJ09B0344-0200