TX Driver Swing Control

Versal Adaptive SoC GTY and GTYP Transceivers Architecture Manual (AM002)

Document ID

AM002

Release Date

2023-10-26

Revision

1.3 English

Driver swing can be controlled through CH*_TXDIFFCTRL[4:0]. The default is user specified. All values listed below are in mV_PDD and are typical values.

Table 1. Transmitter Swing Control
[4:0]	Swing (mV_PDD)
`5'b00000`	223
`5'b00001`	246
`5'b00010`	269
`5'b00011`	291
`5'b00100`	314
`5'b00101`	338
`5'b00110`	361
`5'b00111`	384
`5'b01000`	408
`5'b01001`	431
`5'b01010`	455
`5'b01011`	478
`5'b01100`	502
`5'b01101`	528
`5'b01110`	552
`5'b01111`	574
`5'b10000`	597
`5'b10001`	622
`5'b10010`	644
`5'b10011`	667
`5'b10100`	691
`5'b10101`	716
`5'b10110`	732
`5'b10111`	756
`5'b11000`	780
`5'b11001`	804
`5'b11010`	827
`5'b11011`	851
`5'b11100`	873
`5'b11101`	895
`5'b11110`	918
`5'b11111`	938
The peak-to-peak differential voltage is defined when CH_TXPOSTCURSOR = `5'b00000` and CH_TXPRECUSOR = `5'b00000`. The output swing described above is obtained using settings from the Wizard design, and the recommended values from the Wizard should not be changed.