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 1, a port event on the selected port sets the port

 

 

 

event interrupt (Port_event) bit and notifies the link. This bit is cleared to 0 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 1 to this bit clears the fault bit to 0. This bit is cleared to 0 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 PCI7x21/PCI7x11 controller this field is 01h, indicating compliance with IEEE Std

 

 

 

 

1394a-2000.

 

 

 

 

 

Vendor_ID

24

R

 

Manufacturer’s organizationally unique identifier (OUI). For the PCI7x21/PCI7x11 controller this field is

 

 

 

 

08 0028h (Texas Instruments) (the MSB is at register address 1010b).

 

 

 

 

 

Product_ID

24

R

 

Product identifier. For the PCI7x21/PCI7x11 controller this field is 42 4499h (the MSB is at register address

 

 

 

 

1101b).

 

 

 

 

 

10−5

Page 235
Image 235
Texas Instruments PCI7421, PCI7411, PCI7611 manual Vendor Identification Register, 5. Page 1 Vendor ID Register Configuration