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MAX9288GTMVY+ Datasheet(PDF) 79 Page - Maxim Integrated Products |
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MAX9288GTMVY+ Datasheet(HTML) 79 Page - Maxim Integrated Products |
79 / 103 page MAX9288/MAX9290 3.12Gbps GMSL Deserializers for Coax or STP Input and MIPI CSI-2 Output www.maximintegrated.com Maxim Integrated │ 79 Table 20. HDCP Authentication and Normal Operation (One Repeater, Two µCs)—First and Second Parts of the HDCP Authentication Protocol NO. µC_B µC_R HDCP GMSL SERIALIZER (TX_B1, TX_R1, TX_R2) HDCP GMSL DESERIALIZER (RX_R1, RX_D1, RX_D2) TX_B1 CDS = 0 TX_R1 CDS = 0 TX_R2 CDS = 0 RX_R1 CDS = 1 RX_D1 CDS = 0 RX_D2 CDS = 0 1 Initial state after power-up. Initial state after power-up. All: Power-up waiting for HDCP authentication. All: Power-up waiting for HDCP authentication. 2 — Writes REPEATER = 1 in RX_R1. Retries until proper acknowledge frame received. Note: This step must be completed before the first part of authentication is started between TX_B1 and RX_R1 by the µC_B (step 7). For example, to satisfy this requirement, RX_R1 can be held at power- down until µC_R is ready to write the REPEATER bit, or µC_B can poll µC_R before starting authentication. — — 3 Makes sure that A/V data not requiring protection (low- value content) is available at the TX_B1 inputs (such as blue or informative screen). Alternatively, the FORCE_ VIDEO and FORCE_AUDIO bits of TX_B1 can be used to mask A/V data input of TX_B1. Starts the link between TX_B1 and RX_R1 by writing SEREN = H to TX_B1, or link starts automatically if serializer’s AUTOS is low. — TX_B1: Starts serialization and transmits low-value content A/V data. RX_R1: Locks to incoming data stream and outputs low-value content A/V data. 4 — Starts all downstream links by writing SEREN = H to TX_R1, TX_R2, or links start automatically if AUTOS of transmitters are low. TX_R1, TX_R2: Starts serialization and transmits low-value content A/V data. RX_D1, RX_D2: Locks to incoming data stream and outputs low-value content A/V data. |
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