Datasheet

TSB81BA3E
SLLS783A –MAY 2009–REVISED MAY 2010 www.ti.com
Table 37. ink Request Speed Code Encoding During
Packet Transmission
D5D6 DATA RATE
00 S100
01 S200
10 S400
11 S800
Table 38. 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 39. 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 40. Format Type During Grant Cycle
D0 VALUE DURING
FORMAT
GRANT CYCLE
0 Unspecified
1 Beta format
Table 41. Grant Type Values During Grant Cycle
[D1-D3] VALUE DURING
REQUEST TYPE
GRANT CYCLE
000 Reserved
001 Reserved
010 Isochronous grant
011 Reserved
100 Reserved
101 Asynchronous grant
110 Cycle start grant
111 Immediate grant
Table 42. Speed Type Values During Grant Cycle
[D5-D6] VALUE DURING
SPEED TYPE
GRANT CYCLE
00 S100
01 S200
10 S400
11 S800
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