C141-E039-01EN
3 - 34
(2)
Disconnect/Reconnect Parameters (Page Code = 2)
The format of the page descriptor in this MODE SELECT parameter is shown in Fig.
3.9.
Bit
Byte
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
1
0
1
X‘0E’ or X‘0A’ (Page Length)
2
Buffer Full Ratio
Default
X‘20’
Variable
X‘FF’
3
Buffer Empty Ratio
Default
X‘20’
Variable
X‘FF’
4-5
Bus Inactivity Limit
Default
X‘0001’
Variable
X‘0000’
6-7
X‘0000’ (Disconnect Time Limit)
8-9
X‘0000’ (Connect Time Limit)
10-11
X‘0000’ (Maximum Burst Size)
12
X‘00’ (Reserved)
13-15
X‘000000’ (Reserved)
Figure 3.9 MODE SELECT Parameter: Disconnect/Reconnect Parameters
Note:
If required to transfer this page descriptor by the MODE SENSE or MODE SENSE
EXTENDED, the IDD reports X '0E' as the page length (byte 1). However, if either X '0E' or
X '0A' is specified for the page length in the MODE SELECT command, the IDD regards it as
if the correct page length was specified. The X '0A' page length, is provided in consideration
of compatibility with previous models, but it is recommended that the page length X '0E' be
used by the INIT to support expansions in the specifications in the future.
See section 2.1, "Data Buffer" concerning specification methods for the "Buffer Full Ratio"
and "Buffer Empty Ratio" parameters in this page descriptor and details of data buffer
operation.
(See the
"Note."
)
(63.5 KB)
(63.5 KB)
(=100
µ
s)
