HP C2246 Technical Reference Manual page 79

Mode Select, Mode Sense
Page Code 02H, Disconnect/Reconnect Parameters (Savable Page)
L)
Bit
Byte
7
I
6
I
5
I
4
I
3
I
2
I
1
I
0
00
PS
I
Reserved
I
Page Code = 02H
01 Page Length in Bytes; SCSI (CCS): = OAH; SCSI-2: = OEH
02 Buffer FUll Ratio
03 Buffer Empty Ratio
04-05 (MSB=04) Bus Inactivity Limit (LSB=05)
06-07 (MSB=06) Disconnect Time Limit (LSB=07}
08-09
(MSB=08) Connect Time Limit
(LSB=09)
10-11 SCSI (CCS): Reserved (la.st bytes)
SCSI-2 Bytes Follow
10-11 (MSB:=lO) Maximum Burst Size (LSB=ll)
12
Reserved
I
DTDC
13-15
Reserved
Page 02H Parameter Values
Parameter Default Changeable
Allowable Range
Values
Values
{hex)
Buffer Full Ratio
co
Yes
00 to FF
Buffer Empty Ratio
co
Yes
00 to FF
Bus Inactivity Limit
0004
Yes 0000 to FFFF
Disconnect Time Limit
0000
Yes 0000 to FFFF (ignored)
Connect Time Limit
0000
Yes 0000 =No limit
Maximum Burst Size (SCSI-2 only)
0000
Yes 0000 to FFFF
DTDC (SCSI-2 only; Data Transfer Disconnect 00 Yes
• OOB = Disconnect as controlled by ratios
Control)
• OlB
=
No disconnect during data transfer
• llB
No disconnect once data transfer
started until command complete
• !OB
=
Reserved
SCSI Command Descriptions A-23