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OIF and UXPi liaison report

OIF and UXPi liaison report. Tom Palkert Xilinx Aug. 2004 Keystone. OIF PLL (Physical Layer) activity. Current efforts related to FC are CEI (Common Electrical Interface) CEI specifies: 6G (short and long reach) 11G (short and long reach) 6G is specified for legacy applications

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OIF and UXPi liaison report

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  1. OIF and UXPi liaison report Tom Palkert Xilinx Aug. 2004 Keystone

  2. OIF PLL (Physical Layer) activity • Current efforts related to FC are CEI (Common Electrical Interface) • CEI specifies: • 6G (short and long reach) • 11G (short and long reach) • 6G is specified for legacy applications • 11G is specified for ‘greenfield’ applications

  3. Ballot activity • 6G SR and LR, 11G SR out for straw ballot again.

  4. OIF CEI possible work items • Clause 8: an 11G Medium Reach (MR) NRZ binary coding channel classification with a minimum reach of 600mm (700mm), optimized for minimum power. • The proposed solution uses the Long Reach TX (Pre-emphasis) with the Short Reach RX (No Eq.).

  5. UXPi liaison • UXPi has performed analysis on feasibility of medium reach (600mm) low power 11G link. • Results use NRZ with pre-emphasis, no RX equalization

  6. 11G Medium Reach summary • The transmitter reference model used for channel compliance testing of Medium Reach interfaces is as follows: • 1. Transmit amplitude of both 360 mVppd and 770 mVppd. • 2. A TX edge rate filter simple 40dB/dec low pass of 75% of Baud Rate • 3. Effective Driver UUGJ, UHBHPJ and DCD as in Table 7-3. • 4. Equalizing filter with 2-tap baud spaced emphasis no greater than a total of 6dB with finite resolution no better than 1.5dB. • 5. Worst case transmitter return loss described as a parallel RC element, see 2.B.7. • 6. Maximum baud rate that channel is to operate at or 11.1 Gsym/s, whichever is lowest, see 7.3.1.1.

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