Flex Interface Modes of Operation - Flex Interface Modes of Operation - 3.2 English - PG369

Versal Adaptive SoC 600G Channelized Multirate Ethernet Subsystem (DCMAC) v3.2 LogiCORE IP Product Guide (PG369)

Document_ID
PG369
Release_Date
2026-07-22
Version
3.2 English

The following table describes the available FLEX I/F operation modes.

Note: Some modes are not available in all device speed grades.
Table 1. Flex Interface Modes of Operation
Operating Mode CL91 RS(528,514) CL91 RS(544,514) CL119 RS(544,514) CL161 RS(544,514) Line Rate (Gb/s) FLEX I/F Data

Width (Bits)

FLEX I/F Clock

(MHz)

Logic Internal

Clock (MHz)

Align Bypass 256B/257B

Transcode Bypass

Scrambled with AMs Unscrambled Unscrambled with

/E/ replace (RX only)

Unscrambled

with PCS FSM

100GE ✓ – – – 103.125 264 390.625 644.53 – – ✓ ✓ ✓ ✓
100GE (Wide) ✓ – – – 103.125 330 322.27 1 644.53 – – ✓ ✓ ✓ ✓
100GE – ✓ – ✓ 106.25 264 390.625 664.06 – – ✓ ✓ ✓ ✓
100GE (Wide) – ✓ – ✓ 106.25 330 322.27 1 664.06 – – ✓ ✓ ✓ ✓

100GE overclocking 2

109.42GE (No FEC)

109.42GE (RS528)

✓ – – – 112.84 264 427.42 705.25 – – ✓ ✓ ✓ ✓

100GE overclocking 3

108.61GE (No FEC)

108.61GE (RS528)

✓ – – – 112 264 424.24 700 – – ✓ ✓ ✓ ✓

100GE overclocking 2

106.20GE (RS544)

– ✓ – ✓ 112.84 264 414.85 705.25 – – ✓ ✓ ✓ ✓

100GE overclocking 3

105.41GE (RS544)

– ✓ – ✓ 112 264 411.76 700 – – ✓ ✓ ✓ ✓
100G FlexO – – ✓ – 111.81 320 349.40 698.81 – ✓ – – – –
128GFC 2 ✓ – – – 112.2 264 425 701.25 – – – – – –
128GFC (Wide) 2 ✓ – – – 112.2 330 340 701.25 – – – – – –
112G FEC‑only ✓ – – – 112 320 350 700 ✓ ✓ – – – –
100G FEC‑only – ✓ – – 112 320 350 700 ✓ ✓ – – – –
2x56.42G FEC‑only – ✓ – – 56.42 2x160 352.625 705.25 ✓ ✓ – – – –
200GE (wide) Not Supported
400GE (wide) Not Supported
200GE – – ✓ – 212.5 528 390.625 664.06 – – – ✓ ✓ ✓

200GE overclocking 2

212.4GE (RS544)

– – ✓ – 225.68 528 414.85 705.25 – – – ✓ ✓ ✓

200GE overclocking 3

210.82GE (RS544)

– – ✓ – 224 528 411.76 700 – – – ✓ ✓ ✓
200G FlexO – – ✓ – 223.62 640 349.40 698.81 – ✓ – – – –
400GE – – ✓ – 425 1056 390.625 664.06 – – – ✓ ✓ ✓

400GE overclocking 2

424.8GE (RS544)

– – ✓ – 451.36 1056 414.85 705.25 – – – ✓ ✓ ✓

400GE overclocking 3

421.65GE (RS544)

– – ✓ – 448 1056 411.76 700 – – – ✓ ✓ ✓
400G FlexO – – ✓ – 447.24 1280 349.40 698.81 – ✓ – – – –
  1. Although the required minimum is 312.5 MHz, the recommended minimum is 322.27 MHz.
  2. For transceiver lane serial rate up to 56.42 Gb/s.
  3. For transceiver lane serial rate beyond 56.42 Gb/s and up to 112 Gb/s.