Datasheet

1394 PHY Configuration Space
174
March 5 2007 − June 2011SCPS154C
Table 10−4. 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 10−5 shows the configuration of the vendor
identification page, and Table 10−6 shows the corresponding field descriptions.
Table 10−5. 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 10−6. 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).
Not Recommended for New Designs