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(6)
Caching Parameters (Page Code = 8)
The page descriptor format of this MODE SELECT parameter is shown in Fig. 3.13.
Bit
7
Byte
0
0
1
2
IC
Default
1
Variable
0
3
4-5
Default
Variable
6-7
Default
Variable
8-9
Default
Variable
10-11
Default
Variable
12
FSW
Default
1
Variable
0
13
Default
Variable
14-15
16
17-19
Figure 3.13 MODE SELECT Parameter: Caching Parameters
3 - 46
6
5
4
0
0
0
X'0A' or X'12' (Page Length)
(ABPF)
(CAP)
DISC
0
0
1
0
0
0
X'00' (Reserved)
Pre-fetch inhibit block count
X'FFFF'
X'0000'
Minimum pre-fetch
X'0000'
X'0000'
Maximum pre-fetch
X'00xx'
X'0000'
Maximum pre-fetch limit block count
X'FFFF'
X'0000'
0
0
0
0
0
0
Cache Segment Count
X'04'
X'1F'
X'0000' (Cache Segment Size)
X'00' (Reserved)
X'000000' (Reserved)
C141-E039-01EN
3
2
1
1
0
0
SIZE
WCE
MS
0
0
0
0
1
0
(Reserved)
0
0
0
0
0
0
0
0
RCD
0
1
(1 Cache
Segment)
0
0
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