Datasheet

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SLLS423I − JUNE 2000 − REVISED MARCH 2005
37
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APPLICATION INFORMATION
internal register configuration (continued)
The vendor identification page is used to identify the vendor/manufacturer and compliance level. The page is
selected by writing 1 to the Page_Select field in base register 7. The configuration of the vendor identification
page is shown in Table 5, and corresponding field descriptions are given in Table 6.
Table 5. Page 1 (Vendor ID) Register Configuration
ADDRESS
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 6. Page 1 (Vendor ID) Register Field Descriptions
FIELD SIZE TYPE DESCRIPTION
Compliance 8 Rd Compliance level. For the TSB41AB1 this field is 01h, indicating compliance with IEEE
1394a-2000.
Vendor_ID 24 Rd Manufacturer’s organizationally unique identifier (OUI). For the TSB41AB1 this field is 08 0028h
(Texas Instruments) (the MSB is at register address 1010b).
Product_ID 24 Rd Product identifier. For the TSB41AB1 this field is 42 XXXXh (the MSB is at register address
1101b).
The vendor-dependent page provides access to the special control features of the TSB41AB1, as well as
configuration and status information used in manufacturing test and debug. This page is selected by writing 7
to the Page_Select field in base register 7. The configuration of the vendor-dependent page is shown in Table 7,
and corresponding field descriptions are given in Table 8.
Table 7. Page 7 (Vendor-Dependent) Register Configuration
ADDRESS
BIT POSITION
ADDRESS
0 1 2 3 4 5 6 7
1000 NPA Reserved Link_Speed
1001 Reserved for test
1010 Reserved for test
1011 Reserved for test
1100 Reserved for test
1101 Reserved for test
1110 SWR Reserved for test
1111 Reserved for test