Quantum Data 802BT, User Manual

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802BT/802R Video Test Generator User Guide 193
2. If the “Reset HDCP Rx by gating clock” mode is enabled, the generator resets the
receiver, and gates off transmitter clock and data for 400 mS. Otherwise, the receiver
is not reset.
3. The transmitter reads the Bksv (HDCP receiver KSV), over the I2C bus, and verifies
that it has 20 zeros and 20 ones.
This step is the first interaction between the transmitter and receiver.
4. Receiver writes the receiver KSV to the transmitter.
5. Transmitter generates An (session random number).
6. Transmitter writes An to the receiver, using the I2C bus.
7. Transmitter writes the transmitter KSV to the receiver, using the I2C bus.
8. Load the transmitter keys.
9. The transmitter reads the Ri value (link verification response) from the receiver and
compares it with its own generated Ri value. They should match to proceed. If this step
fails, the test returns to step 1.
10. Generate authentication.
11. Transmitting encrypted data.
Test sequence for Silicon Image transmitters:
1. Reset the transmitter.
2. If the “Reset HDCP Rx by gating clock” mode is enabled, the generator initializes the
transmitter. Otherwise, do not initialize the transmitter.
3. Transmitter generates An (session random number).
4. Transmitter writes An to the receiver, using the I2C bus.
This step is the first interaction between the transmitter and receiver. The transmitter
reads the Bksv, over the I2C bus, and verifies that it has 20 zeros and 20 ones.
5. Write the transmitter KSV to the receiver.
6. Read and verify the receiver KSV.
7. Write receiver KSV to transmitter.
8. Ri ready at transmitter.
9. The transmitter reads the Ri value from the receiver and compares it with its own
generated Ri value. They should match to proceed. If this step fails, the test returns to
step 1.
10. Generate authentication.
11. Transmitting encrypted data.