Datasheet

TUSB7320, TUSB7340
www.ti.com SLLSE76E–MARCH 2011– REVISED JULY 2011
Table 4-106. Custom PHY Transmit/Receive Control Register Description
(1)
Bit Field Name Access Description
31:27 RSVD r Reserved. Returns zeros when read.
Port 4 Equalization Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default equalization settings for port 4 with the values in the
26† PORT4_EQ_OV† rw PORT4_EQ_FUNC field and the PORT4_EQ_INIT field of the Equalizer
Control Register. For the TUSB7320 Port 4 is not present and this bit has
no effect.
Port 4 Swing Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default swing settings for port 4 with the values in the
25† PORT4_SWING_OV† rw
PORT4_SWING field of the Deemphasis and Swing Control Register.
For the TUSB7320 Port 4 is not present and this bit has no effect.
Port 4 Deemphasis Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default de-emphasis settings for port 4 with the values in
24† PORT4_DE_OV† rw
the PORT4_DE field of the Deemphasis and Swing Control Register. For
the TUSB7320 Port 4 is not present and this bit has no effect.
23:19 RSVD r Reserved. Returns zeros when read.
Port 3 Equalization Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default equalization settings for port 3 with the values in the
18† PORT3_EQ_OV† rw PORT3_EQ_FUNC field and the PORT3_EQ_INIT field of the Equalizer
Control Register. For the TUSB7320 Port 3 is not present and this bit has
no effect.
Port 3 Swing Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default swing settings for port 3 with the values in the
17† PORT3_SWING_OV† rw
PORT3_SWING field of the Deemphasis and Swing Control Register.
For the TUSB7320 Port 3 is not present and this bit has no effect.
Port 3 Deemphasis Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default de-emphasis settings for port 3 with the values in
16† PORT3_DE_OV† rw
the PORT3_DE field of the Deemphasis and Swing Control Register. For
the TUSB7320 Port 3 is not present and this bit has no effect.
15:11 RSVD r Reserved. Returns zeros when read.
Port 2 Equalization Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default equalization settings for port 2 with the values in the
10† PORT2_EQ_OV† rw
PORT2_EQ_FUNC field and the PORT2_EQ_INIT field of the Equalizer
Control Register.
Port 2 Swing Override. When this bit is set to ‘1’, the TUSB73X0
9† PORT2_SWING_OV† rw overrides the default swing settings for port 2 with the values in the
PORT2_SWING field of the Deemphasis and Swing Control Register.
Port 2 Deemphasis Override. When this bit is set to ‘1’, the TUSB73X0
8† PORT2_DE_OV† rw overrides the default de-emphasis settings for port 2 with the values in
the PORT2_DE field of the Deemphasis and Swing Control Register.
7:3 RSVD r Reserved. Returns zeros when read.
Port 1 Equalization Override. When this bit is set to ‘1’, the TUSB73X0
overrides the default equalization settings for port 1 with the values in the
2† PORT1_EQ_OV† rw
PORT1_EQ_FUNC field and the PORT1_EQ_INIT field of the Equalizer
Control Register.
Port 1 Swing Override. When this bit is set to ‘1’, the TUSB73X0
1† PORT1_SWING_OV† rw overrides the default swing settings for port 1 with the values in the
PORT1_SWING field of the Deemphasis and Swing Control Register.
Port 1 Deemphasis Override. When this bit is set to ‘1’, the TUSB73X0
0† PORT1_DE_OV† rw overrides the default de-emphasis settings for port 1 with the values in
the PORT1_DE field of the Deemphasis and Swing Control Register.
(1) Bits marked with † are reset by a PCI Express reset (PERST#), a GRST#, or the internally-generated power-on reset
Copyright © 2011, Texas Instruments Incorporated CLASSIC PCI CONFIGURATION SPACE 65
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