
PHY Register Configuration
200
September 2005
SCPS110
Table 104. Page 0 (Port Status) Register Field Descriptions (Continued)
FIELD
SIZE
TYPE
DESCRIPTION
Int_enable
1
RW
Port event interrupt enable. When the Int_enable bit is set to 1b, a port event on the selected port sets the port
event interrupt (Port_event) bit and notifies the link. This bit is cleared to 0b by a system (hardware) reset and
is unaffected by bus reset.
Fault
1
RW
Fault. This bit indicates that a resume-fault or suspend-fault has occurred on the selected port, and that the
port is in the suspended state. A resume-fault occurs when a resuming port fails to detect incoming cable
bias from its attached peer. A suspend-fault occurs when a suspending port continues to detect incoming
cable bias from its attached peer. Writing 1b to this bit clears the fault bit to 0b. This bit is cleared to 0b by
system (hardware) reset and is unaffected by bus reset.
10.3 Vendor Identification Register
The vendor identification page identifies the vendor/manufacturer and compliance level. The page is selected
by writing 1 to the Page_Select field in base register 7. Table 105 shows the configuration of the vendor
identification page, and Table 106 shows the corresponding field descriptions.
Table 105. Page 1 (Vendor ID) Register Configuration
BIT POSITION
ADDRESS
0
1
2
3
4
5
6
7
1000
Compliance
1001
Reserved
1010
Vendor_ID[0]
1011
Vendor_ID[1]
1100
Vendor_ID[2]
1101
Product_ID[0]
1110
Product_ID[1]
1111
Product_ID[2]
Table 106. Page 1 (Vendor ID) Register Field Descriptions
FIELD
SIZE
TYPE
DESCRIPTION
Compliance
8
R
Compliance level. For the controller this field is 01h, indicating compliance with IEEE Std 1394a-2000.
Vendor_ID
24
R
Manufacturer’s organizationally unique identifier (OUI). For the controller this field is 08 0028h (Texas
Instruments) (the MSB is at register address 1010b).
Product_ID
24
R
Product identifier. For the controller this field is 42 4499h (the MSB is at register address 1101b).