2 caching parameters – FUJITSU MAS3367 User Manual
Page 59
2.2 Look-Ahead Cache Feature
C141-E167
2 - 9
2.2.2
Caching parameters
The IDD supports the MODE SELECT parameters (caching parameters: page code = 8) shown in
Figure 2.5 for controlling the cache feature. See Section 4.1 concerning details of the MODE
SELECT parameters.
[Caching Parameters (Page Code = 8)]
Bit
Byte
7
6
5
4
3
2
1
0
0
0
0
0
0
1
0
0
0
1
X‘0A’ or X‘12’ (
Page Length
)
2
IC
ABPF
CAP
DISC
SIZE
WCE
MS
RCD
Default
0
0
0
1
0
1
0
0
Variable
1
0
0
0
0
1
0
1
3
X‘00’ (Reserved)
4-5
Prefetch-suppressed block count
Default
X‘FFFF’
Variable
X‘0000’
6-7
Minimum prefetch
Default
X‘0000’
Variable
X‘0000’
8-9
Maximum prefetch
Default
X‘00xx’
Variable
X‘0000’
10-11
Maximum prefetch
limit block count
Default
X‘FFFF’
Variable
X‘0000’
12
FSW
LBCSS
DRA
VS
VS
Reserved
Default
1
0
0
0
0
0
0
0
Variable
0
0
0
0
0
0
0
0
13
Cache segment count
Default
X‘08’
Variable
X‘3F’
14-15
Cache segment size
Default
X‘0000’
Variable
X‘0000’
16
X‘00’ (Reserved)
17-19
Non cache buffer size
Default
X‘000000’
Variable
X‘000000’
Remark:
The variable column indicates whether the parameter can be changed or not (if "1", the
parameter can be changed).
Figure 2.5
Cache control parameters