Table 8.2 Serdes Transmit Driver Settings In Gen1 Mode - Renesas IDT 89HPES48H12G2 User Manual

IDT SerDes
Notes
PES48H12G2 User Manual
Transmit Levels
De-
De-
Drive empha-
empha-
Level sized
sis
Level
959 -3.6 636
959 -3.6 636
958 -3.6 636
957 -3.6 635
956 -3.6 635
949 -3.5 631
942 -3.5 628
935 -3.5 624
928 -3.5 620
902 -3.5 602
877 -3.5 584
851 -3.6 566
825 -3.6 547
789 -3.5 525
753 -3.5 503
716 -3.5 481
680 -3.4 459
638 -3.4 431
596 -3.4 403
554 -3.4 374
512 -3.4 346
465 -3.4 314
419 -3.5 281
372 -3.5 248
325 -3.6 216
274 -3.6 182
224 -3.6 148
173 -3.6 115
122 -3.6 81

Table 8.2 SerDes Transmit Driver Settings in Gen1 Mode

Table 8.3 shows a number of possible settings for the drive, de-emphasis, and slew rate controls in
Gen2 mode with -3.5dB de-emphasis.
Settings of Relevant Fields in the S[x]TXLCTL0 &
S[x]TXLCTL1 registers
TDVL_ TX_EQ_
FS3DBG1 3DBG1
0x1C 0x2
0x1B 0x2
0x1A 0x2
0x19 0x2
0x18 0x2
0x17 0x2
0x16 0x2
0x15 0x2
0x14 0x2
0x13 0x2
0x12 0x2
0x11 0x2
0x10 0x2
0x0F 0x2
0x0E 0x2
0x0D 0x2
0x0C 0x2
0x0B 0x2
0x0A 0x2
0x09 0x2
0x08 0x2
0x07 0x2
0x06 0x2
0x05 0x2
0x04 0x2
0x03 0x2
0x02 0x2
0x01 0x2
0x00 0x2
1
The default setting is highlighted.
8 - 6
CDC_ FDC_ TX_SLEW
FS3DBG1 FS3DBG1
0x3 0x3
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x4
0x3 0x3
0x3 0x3
0x3 0x3
0x3 0x3
0x3 0x2
0x3 0x2
0x3 0x2
0x3 0x2
0x3 0x2
0x3 0x2
0x3 0x2
0x3 0x2
0x3 0x1
0x3 0x1
0x3 0x1
0x3 0x1
April 5, 2013
_G1
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2
0x2