Datasheet

TSB41BA3D
www.ti.com ............................................................................................................................................... SLLS959A – DECEMBER 2008 – REVISED MARCH 2009
Table 39. Link Request Type Encoding During Packet
Transmission
D1 – D3 Request Type
000 No request
001 Isoch_Req_Odd
010 Isoch_Req_Even
011 Current
100 Next_Even
101 Next_Odd
110 Cyc_Start_Req
111 Reserved
Table 40. Link Request Speed Code Encoding During
Packet Transmission
D5 – D6 DATA RATE
00 S100
01 S200
10 S400
11 S800
Table 41. Link Request Format Encoding During Packet Transmission
D0 FORMAT
0 Link does not request either Beta or legacy packet format for bus transmission.
1 Link requests Beta packet format for bus transmission.
Table 42. Subaction End Notification Encoding During Packet Transmission
D4 DESCRIPTION
0 Transmitted packet does not represent end of a subaction.
1 Transmitted packet marks the end of a subaction.
The PHY indicates to the link during the GRANT cycle which type of grant is being issued. This indication
includes the grant type as well as the grant speed. The link uses the bus grant for transmitting the granted
packet type. The link transmits a granted packet type only if its request type exactly matches the granted speed
and the granted format.
Table 43. Format Type During Grant Cycle
D0 VALUE DURING
FORMAT
GRANT CYCLE
0 Unspecified
1 Beta format
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