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DS90UH925Q Datasheet, PDF (36/47 Pages) Texas Instruments – 720p 24-bit Color FPD-Link III Serializer with HDCP
DS90UH925Q
ADD
(dec)
147
148
160
ADD
(hex)
0x93
0x94
0xA0
Register
Name
TX_KSV3
TX_KSV4
RX BCAPS
161 0xA1 RX
BSTATUS0
162 0xA2 RX
BSTATUS1
163 0xA3 KSV FIFO
Bit(s)
7:0
7:0
7
6
5
4
3:2
1
0
7
6:0
7:4
3
2:0
7:0
Register
Type
R
R
R
R
R
R
R
R
R
R
R
R
Default
(hex)
0x00
0x00
0x13
0x00
0x00
0x00
Function Description
TX KSV3 KSV3: Value of byte 3 of the Serializer KSV
TX KSV4 KSV4: Value of byte 4 of the Serializer KSV
Reserved
Repeater
Indicates if the attached Receiver supports
downstream connections. This bit is valid once the
Bksv is ready as indicated by the BKSV_RDY bit
in the HDCP
KSV FIFO KSV FIFO Ready
Indicates the receiver has built the list of attached
KSVs and computed the verification value
Fast I2C
Fast I2C: The HDCP Receiver supports fast I2C.
Since the I2C is embedded in the serial data, this
bit is not relevant
Reserved
Features
HDCP v1.1_Features
The HDCP Receiver supports the Enhanced
Encryption Status Signaling (EESS), Advance
Cipher, and Enhanced Link Verification options.
Fast Re-
auth
The HDCP Receiver is capable of receiving
(unencrypted) video signal during the session re-
authentication.
Max
Devices
Maximum Devices Exceeded: Indicates a
topology error was detected. Indicates the number
of downstream devices has exceeded the depth of
the Repeater's KSV FIFO
Device
Count
Total number of attached downstream device. For
a Repeater, this will indicate the number of
downstream devices, not including the Repeater.
For an HDCP Receiver that is not also a Repeater,
this field will be 0
Reserved
Max
Cascade
Maximum Cascade Exceeded: Indicates a
topology error was detected. Indicates that more
than seven levels of repeaters have been cascad-
ed together
Cascade Indicates the number of attached levels of devices
Depth
for the Repeater
KSV FIFO
KSV FIFO
Each read of the KSV FIFO returns one byte of the
KSV FIFO list composed by the downstream
Receiver.
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