Datasheet

TSB81BA3E
SLLS783A –MAY 2009–REVISED MAY 2010 www.ti.com
Table 5. Page 1 (Vendor ID) Register Configuration
BIT POSITION
ADDRESS
0 1 2 3 4 5 6 7
0000 Compliance
0001 Reserved
0010 Vendor_ID0
0011 Vendor_ID1
0100 Vendor_ID2
0101 Product_ID0
0110 Product_ID1
0111 Product_ID2
Table 6. Page 1 (Vendor ID) Register Field Descriptions
FIELD SIZE TYPE DESCRIPTION
Compliance level. For the TSB81BA3E, this field is 02h, indicating compliance with the 1394b-2002
Compliance 8 Rd
specification.
Manufacturer's organizationally unique identifier (OUI). For the TSB81BA3E, this field is 08_00_28h
Vendor_ID 24 Rd
(Texas Instruments) (the MSB is at register address 1010b).
Product identifier. For the TSB81BA3E, this field can be either 83_13_07h (the MSB is at register
Product_ID 24 Rd
address 1101b).
The vendor-dependent page provides access to the special control features of the TSB81BA3E, 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. Table 7 shows the configuration of the vendor-dependent page and
Table 8 shows the corresponding field descriptions.
Table 7. Page 7 (Vendor-Dependent) Register Configuration
BIT POSITION
ADDRESS
0 1 2 3 4 5 6 7
0000 Reserved Reserved
0001 Reserved for test
0010 Reserved for test
0011 Reserved for test
0100 Reserved for test
0101 Reserved for test
0110 SWR Reserved for test
0111 Reserved for test
Table 8. Page 7 (Vendor-Dependent) Register Field Descriptions
FIELD SIZE TYPE DESCRIPTION
Software hard reset. Writing a 1 to this bit forces a hard reset of the PHY (same effect as momentarily
SWR 1 Rd/Wr
asserting the RESET terminal low). This bit is always read as a 0.
Power-Class Programming
The PC0-PC2 terminals are programmed to set the default value of the power-class indicated in the pwr field
(bits 21−23) of the transmitted self-ID packet. Descriptions of the various power-classes are given in Table 9.
The default power-class value is loaded following a hardware reset, but is overridden by any value subsequently
loaded into the Pwr_Class field in register 4.
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