MAX9263GCB/V+T Maxim Integrated, MAX9263GCB/V+T Datasheet - Page 51

• Manufacturer Part Number: MAX9263GCB/V+T
• Description: Serializers & Deserializers - Serdes GMSL Serializer w/HDCP Interface
• Manufacturer: Maxim Integrated

Table 18. HDCP Authenticaion and Normal Operation (One Repeater, Two µCs)—First
and Second Parts of the HDCP Authentication Protocol (continued)
NO.
3
4
5
6
7
8
Makes sure that the 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 the
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 AUTOS is low.
—
Reads the locked bit of RX_R1 and
ensures that link between TX_B1
and RX_R1 is established.
Optionally, writes a random-number
seed to TX_B1.
Starts and completes the first
part of the authentication protocol
between TX_B1, RX_R1. See steps
6–10 in Table 15.
—
µC_B
HDCP Gigabit Multimedia Serial
—
Starts all downstream links by writ-
ing SEREN = H to TX_R1, TX_R2,
or links start automatically if AUTOS
of transmitters are low.
Reads the locked bit of RX_D1
and makes sure that link between
TX_R1 and RX_D1 is established.
Reads the locked bit of RX_D2 and
ensures that link between TX_R2
and RX_D2 is established.
Writes 1 to the GPIO_0_FUNCTION
and GPIO_1_FUNCTION bits in
RX_R1 to change the GPIO
functionality to be used for HDCP
purpose. Optionally, writes a
random-number seed to TX_R1
and TX_R2.
—
When GPIO_1 = 1 is detected, starts
and completes the first part of the
authentication protocol between
(TX_R1, RX_D1) and (TX_R2, RX_D2)
links. See steps 6–10 in Table 15.
Link Serializer/Deserializer
µC_R
TX_B1: Starts serial-
ization and transmits
low-value content
A/V data.
TX_R1, TX_R2:
Starts serialization
and transmits low-
value content A/V
data.
—
—
TX_B1: According to
the commands from
FC_B, generates
AN, computes R0.
TX_R1, TX_R2:
According to the
commands from
FC_R, generates
AN, computes R0.
TX_B1 CDS = 0
TX_R1 CDS = 0
TX_R2 CDS = 0
(TX_B1, TX_R1,
SERIALIZER
TX_R2)
RX_R1: Locks to
incoming data
stream and outputs
low-value content
A/V data.
RX_D1, RX_D2:
Locks to incoming
data stream and
outputs low-value
content A/V data.
—
—
RX_R1: According
to the commands
from FC_B, com-
putes R0’.
RX_D1, RX_D2:
According to the
commands from
FC_R, computes
R0’.
RX_R1 CDS = 1
RX_D1 CDS = 0
RX_D2 CDS = 0
DESERIALIZER
(RX_R1, RX_D1,
RX_D2)
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