48SWTQFN-EP datasheet(80/103 Pages) MAXIM

80 / 103 page

MAX9288/MAX9290

3.12Gbps GMSL Deserializers

for Coax or STP Input and MIPI CSI-2 Output

www.maximintegrated.com

Maxim Integrated │ 80

Table 20. HDCP Authentication and Normal Operation (One Repeater, Two µCs)—First

and Second Parts of the HDCP Authentication Protocol (continued)

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

Reads the locked bit of RX_R1

and makes sure the link

between TX_B1 and RX_R1 is

established.

Reads the locked bit of RX_D1

and makes sure the link

between TX_R1 and RX_D1 is

established. Reads the locked

bit of RX_D2 and makes sure

the link between TX_R2 and

RX_D2 is established.

—

Optionally, writes a random

number seed to TX_B1.

Writes 1 to the

GPIO_0_FUNCTION and

GPIO_1_FUNCTION bits

in RX_R1 to change GPIO

functionality used for HDCP

purpose. Optionally, writes a

random-number seed to TX_R1

and TX_R2.

—

Starts and completes the

first part of the authentication

protocol between TX_B1, RX_R1

(see steps 6–10 in Table 17).

—

TX_B1: According

to commands from

µC_B, generates AN,

computes R0.

RX_R1: According to

commands from µC_B,

computes R0’.

—

When GPIO_1 = 1 is detected,

starts and completes the first part

of the authentication protocol

between the (TX_R1, RX_D1)

and (TX_R2, RX_D2) links (see

steps 6–10 in Table 17).

TX_R1, TX_R2:

According to commands

from µC_R, generates

AN, computes R0.

RX_D1, RX_D2:

According to commands

from µC_R, computes

R0’.

Waits for the VSYNC falling

edge and then enables

encryption on the (TX_B1,

RX_R1) link. Full authentication

is not complete yet so it makes

sure A/V content that needs

protection is not transmitted.

Since REPEATER = 1 was read

from RX_R1, the second part of

authentication is required.

—

TX_B1: Encryption

enabled after next

VSYNC falling edge.

RX_R1: Decryption

enabled after next

VSYNC falling edge.

48SWTQFN-EP Datasheet(PDF) 80 Page - Maxim Integrated Products

48SWTQFN-EP Datasheet(HTML) 80 Page - Maxim Integrated Products

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL