MCDP6000 Reference Design 4 – USB Type-C DP Alt-mode Switching Retimer

The MCDP6000 is a low power USB 3.2 x1 and DisplayPort1.4a repeater device with an integrated USB Type-C switch targeted for desktop / mobile PC motherboard-down application. The USB 3.2 x1 retimer supports both SuperSpeed (SS) bit rate (5 Gbps), and SuperSpeedPlus (SSP) data rate (10 Gbps). The USB 3.2 x1 retimer includes the link layer function and LTSSM and RTSSM to participate in the link training. The MCDP6000 supports SS mode with a BLR (Bit-Level Retimer) and SSP mode with a SRIS (Separate Reference clock Independent SSC). The MCDP6000 supports link power management with Ux entry and exits in both SS and SSP modes. The DP1.4a repeater supports 1.62 Gbps, 2.7 Gbps, 5.4 Gbps, and 8.1 Gbps data rates. The DP1.4a repeater implements AUX_CH snooping function of DPCD addresses defined in the standard as well as the LT-tunable PHY Repeater DPCD registers. The transmitter employs TXEQ, which adjusts its pre-emphasis level according to either the AUX_CH transaction during the link training or the TWI. The receiver employs a fully adaptive Continuous Time Linear Equalizer (CTLE) and Decision Feedback Equalizer (DFE). The MCDP6000 implements sophisticated and powerful monitor functions for troubleshooting on PHY and link layer, too.

MCDP6000 Reference Design 4


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