DS90UH929-Q1 Datasheet, PDF (54/77 Pages) Texas Instruments – 720p HDMI to FPD-Link III Bridge Serializer with HDCP

DS90UH929-Q1
SNLS458 – NOVEMBER 2014
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Register Maps (continued)
ADD
(dec)
160
ADD
(hex)
0xA0
Register Name
RX_BCAPS
161
0xA1 RX_BSTATUS0
162
0xA2 RX_BSTATUS1
163
0xA3 KSV_FIFO
Bit(s)
7
6
5
4
3:2
1
0
7
6:0
7:4
3
2:0
7:0
Table 8. Serial Control Bus Registers (continued)
Register
Type
R
R
R
R
R
R
R
R
R
R
Default
(hex)
0x01
0x03
0x00
0x00
0x00
Function
Description
Reserved.
Repeater
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_RD KSV FIFO Ready: Indicates the receiver has built the list of attached KSVs and computed
Y
the verification value V’.
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_1 1.1_Features: The HDCP Receiver supports the Enhanced Encryption Status Signaling
_1
(EESS), Advance Cipher, and Enhanced Link Verification options.
FAST_REAUT Fast Reauthentication: The HDCP Receiver is capable of receiving (unencrypted) video
H
signal during the session re-authentication.
MAX_DEVS_E Maximum Devices Exceeded: Indicates a topology error was detected. Indicates the
XCEEDED
number of downstream devices has exceeded the depth of the Repeater's KSV FIFO.
DEVICE_COU Device Count: Total number of attached downstream device. For a Repeater, this will
NT
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_CASC_E Maximum Cascade Exceeded: Indicates a topology error was detected. Indicates that
XCEEDED
more than seven levels of repeaters have been cascad-ed together.
Cascade
Depth
Cascade Depth: Indicates the number of attached levels of devices 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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