TUSB7340 datasheet(59/117 Pages) TI1

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TUSB7320, TUSB7340

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SLLSE76M – MARCH 2011 – REVISED JULY 2015

Table 110. Custom PHY Transmit/Receive Control Register Description

BIT

FIELD NAME

ACCESS

DESCRIPTION

31:27

RSVD

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

PORT4_EQ_OV(1)

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

PORT4_SWING_OV(1)

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

PORT4_DE_OV(1)

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

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

PORT3_EQ_OV(1)

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

PORT3_SWING_OV(1)

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

PORT3_DE_OV(1)

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

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

PORT2_EQ_OV(1)

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 overrides

PORT2_SWING_OV(1)

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

PORT2_DE_OV(1)

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

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

PORT1_EQ_OV(1)

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 overrides

PORT1_SWING_OV(1)

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

PORT1_DE_OV(1)

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)

This bit is reset by a PCI Express reset (PERST), a GRST, or the internally generated power-on reset.

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