User Guide — EP9134_UG V0.7
Explore Confidential Proprietary
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25
3.3.1.12 TX_RI Registers ($22 ~ $23) -
TX_RI_1 ~ TX_RI_2
Table 3-13
TX_RI Registers
$22 ~ $23
bit
7
6
5
4
3
2
1
0
R
TX_RI_1
[7:0] ~ TX_
RI_2[7:0]
W
Reset:
-
-
-
-
-
-
-
-
These 2 registers hold transmitter’s Ri value for the selected transmitter port. They should be read and
compared against the Ri value of the receiver to ensure that the encryption process on the transmitter
and receiver is synchronized.
3.3.1.13 TX_M0 Registers ($25 ~ $2C) -
TX_M0_1 ~ TX_M0_8
Table 3-14
TX_M0 Registers
$25 ~ $2C
bit
7
6
5
4
3
2
1
0
R
TX_M0_1[7:0] ~ TX_M0_8[7:0]
Reset:
-
-
-
-
-
-
-
-
These 8 registers are read only which hold transmitter’s M0 values which calculated from HDCP
engine. These values will be used for SHA calculation.
3.3.1.14 RX_M0_RDY Register
Table 3-15
RX_M0_RDY Register
$40
bit
7
6
5
4
3
2
1
0
R
0
0
0
0
0
0
0
RX_M0_RDY
Reset:
0
0
0
0
0
0
0
0
The RX_M0_RDY bit will be set to 1 while the last byte of AKSV is written and the HDCP engine
completes the M0 calculation.
3.3.1.15 RX_M0 Registers ($41 ~ $48) -
RX_M0_1 ~ RX_M0_8
Table 3-16
RX_M0 Registers
$41 ~ $48
bit
7
6
5
4
3
2
1
0
R
RX_M0_1[7:0] ~ RX_M0_8[7:0]
Reset:
-
-
-
-
-
-
-
-
Exp
lo
lore
_RDY bit
_RDY b
e M0
M0
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On
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