Mode Sense (10)
Julyl 2017 Command Set 153
Enhanced Phy Control Mode Descriptor Data
TABLE 4-78 Enhanced Phy Control Mode Descriptor Data
Byte
Bit
76543210
0 Reserved (00h)
1 Phy Identifier
2 to 3 (MSB) Descriptor Length (10h) (LSB)
4 to 7 (MSB) Programmed Phy Capabilities (LSB)
8 to 11 (MSB) Current Phy Capabilities (LSB)
12 to 15 (MSB) Attached Phy Capabilities (LSB)
16 Reserved (00h)
17 Reserved (00h)
18 Reserved Neg. SSC Negotiated Physical Link Rate
19
Reserved
Hdware
Muxing
Support
Enhanced Phy Control Mode Descriptor Data Definitions:
Phy Identifier A unique Phy Identifier is returned for each Phy.
Descriptor Length The library returns a value of 10h (16d) bytes.
Programmed Phy
Capabilities
This field indicates the SNW-3 (Speed Negotiation Window) Phy capabilities
bits that are going to be transmitted in the next link reset sequence containing
SNW-3 as defined in TABLE 4-79.
Current Phy Capabilities This field indicates the outgoing SNW-3 Phy capabilities bits transmitted in the
last link reset sequence as defined in TABLE 4-79.
If the last link reset sequence did not include SNW-3, then the Current Phy
Capabilities field shall be set to 00000000h.
Attached Phy
Capabilities
This field indicates the incoming SNW-3 Phy capabilities bits received in the
last SNW-3 as defined in TABLE 4-79.
If the last link reset sequence did not include SNW-3, then the Attached Phy
Capabilities field shall be set to 00000000h .
Negotiated SSC The Negotiated SSC bit is only valid when the Negotiated Physical Link Rate is
great than or equal to 8h. When valid:
0 = SSC is enabled
1 = SSC is disabled.
Hardware Muxing
Supported
0 = The Phy does not support multiplexing.
1 = The Phy supports multiplexing.