8.6.1.14 VOD_CTRL Register (Offset = 0x32) [reset = 0x40]
VOD_CTRL is shown in Table 26.
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This register controls the transmitters output linearity range for both UFP and DFP. When device is configured for limited redriver (SSRX_LIMIT_ENABLE field is set), USB_SSRX_VOD controls the VOD level for SSRX limited driver.
Table 26. VOD_CTRL Register Field Descriptions
Bit |
Field |
Type |
Reset |
Description |
7-6 |
LFPS_TX12_VOD |
R/W |
0x1 |
VOD linearity control for TX1 or TX2 when LFPS is being transmitted.
0x0 = LINR_L3 (highest)
0x1 = LINR_L2
0x2 = LINR_L1
0x3 = LINR_L0 (lowest)
|
5-4 |
DP_VOD |
R/W |
0x0 |
VOD linearity control for DP paths.
0x0 = LINR_L3 (highest)
0x1 = LINR_L2
0x2 = LINR_L1
0x3 = LINR_L0 (lowest)
|
3-2 |
USB_TX12_VOD |
R/W |
0x0 |
VOD linearity control for USB downstream facing ports (TX1 and TX2).
0x0 = LINR_L3 (highest)
0x1 = LINR_L2
0x2 = LINR_L1
0x3 = LINR_L0 (lowest)
|
1-0 |
USB_SSRX_VOD |
R/W |
0x0 |
VOD linearity control for USB upstream facing port (SSRX). When SSRX_LIMIT_ENABLE = 1, then this field controls the limited VOD for SSRX.
0x0 = LINR_L3 (highest)
0x1 = LINR_L2
0x2 = LINR_L1
0x3 = LINR_L0 (lowest)
|