TUSB1104 datasheet(40/55 Pages) TI

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Table 7-26. AEQ_CONTROL_AUX1 Register Field Descriptions (continued)

Bit

Field

Type

Reset

Description

5-2

RESERVED

Reserved

1-0

RESERVED

Reserved

7.6.1.17 AEQ_CONTROL_AUX2 Register (Offset = 51h) [Reset = 07h]

AEQ_CONTROL_AUX2 is shown in Table 7-27.

Return to the Summary Table.

Table 7-27. AEQ_CONTROL_AUX2 Register Field Descriptions

Bit

Field

Type

Reset

Description

7-5

RESERVED

Reserved

EQ_MERGE

R/W

Initial EQ result merge control. This field controls how the EQ results

from the positive and negative VOD offsets steps are merged to

produce the initial EQ value. This field is applicable only when the

AEQ_MODE field is set to 2'b10.

0h = Use max of pos/neg VOD EQs

1h = Use min of pos/neg VOD EQs

3-0

MID_HC_EQ

R/W

Sets EQ value during the mid-eye hit-count capture step. This field is

applicable only when the AEQ_MODE field is set to 2'b10 or 2'b11.

7.6.1.18 AEQ_CONTROL_AUX3 Register (Offset = 52h) [Reset = 86h]

AEQ_CONTROL_AUX3 is shown in Table 7-28.

Return to the Summary Table.

Table 7-28. AEQ_CONTROL_AUX3 Register Field Descriptions

Bit

Field

Type

Reset

Description

7-5

HC_EQ_THR

R/W

Sets the hit-count threshold during the EQ search steps. The

algorithm will find the minimum EQ setting such that the hit-

count is at or above value N_eq, where: N_eq = HC_me * (128-

HC_EQ_THR)/128 and HC_me is the mid-eye hit-count. This field is

applicable only when the AEQ_MODE field is set to 2'b10.

RESERVED

Reserved

3-0

HC_VOD_THR

R/W

Sets the hit-count threshold during the VOD search steps. The

algorithm will find the maximum DAC VOD setting such that the

hit-count is at or above the threshold value N_vod, where: N_vod =

HC_me * HC_VOD_THR/128 and HC_me is the mid-eye hit-count.

This field is applicable only when the AEQ_MODE field is set to

2'b10.

TUSB1104

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