Sub-page 03h—negotiated settings – HP Q153090901 User Manual
Page 89
MODE SELECT 15h/55h
C
omm
an
ds
89
All the fields on this page are vendor-specific. None are supported, so they should all be zero.
Sub-page 03h—Negotiated Settings
96
ATN Value (0)
99
100
C/D Value (0)
103
104
I/O Value (0)
107
108
MSG Value (0)
111
112
Reserved (0)
227
7
6
5
4
3
2
1
0
0
Transfer Period Factor
1
Reserved (0)
2
Req/Ack Offset
3
Transfer Width Exponent
4
Protocol Options Bits
5
Reserved (0)
Transceiver Mode
Sent
PCOMP_EN
Received
PCOMP_EN
6
Reserved (0)
7
Transfer Period Factor
The negotiated transfer period factor.
Req/Ack Offset
The negotiated Req/Ack offset.
Transfer Width Exponent
The negotiated transfer width.
Protocol Options Bits
The negotiated protocol options:
Bit
Protocol Option Meaning
Supported
7
PCOMP_EN
Precompensation
Yes
6
RTI
Retain training information
Yes
5
RD_STRM
Read streaming and read flow control
No
4
WR_FLOW
Write flow control
No
3
HOLD_MCS
Hold margin control
No
2
QAS_REQ
Quick arbitration and selection
No
1
DT_REQ
Double transition clocking
Yes
0
IU_REQ
Information units
Yes
7
6
5
4
3
2
1
0