Datasheet

TSB12LV32 Data Formats
78
SGLS139B − October 2003 − Revised April 2004TSB12LV32-EP
7.3.1.3 Remote Command Packets
The remote command packet provides a method for one node to issue a number of Phy-specific commands
to the selected port within the target Phy. The reception of a remote command packet requests the node
identified by the Phy_ID field to perform the operation specified in the cmnd field and subsequently return a
remote confirmation packet. The format of this packet is shown in Figure 7−14 and described in Table 7−11.
00 Phy_ID 00 type (8) cmnd00111
Logical inverse of the first quadlet
transmitted first
transmitted last
0 0 0 port 0 0 0
Figure 7−14. Remote Command Packet Format
Table 7−11. Remote Command Packet Fields
FIELD NAME DESCRIPTION
Phy_ID Physical node identifier of the destination of this packet
type Extended Phy packet type (8 identifies command packet)
port This field selects one of the Phy ports
cmnd Command:
0 = NOP (No operation)
1 = Transmit TX_DISABLE_NOTIFY, then disable port
2 = Initiate suspend (i.e., become a suspend initiator)
4 = Clear the port’s Fault bit to zero
5 = Enable port
6 = Resume port
7.3.1.4 Resume Packets
The resume packet is a broadcast packet to all the Phys on the bus. It commands all suspended ports on the
bus to resume normal operation. The reception of the resume packet causes any node to commence resume
operations for all Phy ports that are both connected and suspended. A resume packet requires no reply. The
format of this packet is shown in Figure 7−15 and described in Table 7−12.
00 Phy_ID 00 type (F
16
)00001
Logical inverse of the first quadlet
transmitted first
transmitted last
000 0110000 0
Figure 7−15. Resume Packet Format
Table 7−12. Resume Packet Fields
FIELD NAME DESCRIPTION
Phy_ID Physical node identifier of the source of this packet
type Extended Phy packet type (F identifies resume packet)