Explore EP9134, User Manual

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User Guide — EP9134_UG V0.7
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3.3.1.19 RX_KSV_FIFO Registers ($80 ~ $CF)
These 80-bytes registers are write only. The value writes to this register can be read by the upstream source
through the DDC link while the HDCP is invoked.
The MCU shall write 0x00 to these registers to be the
default values. Each KSV list contains 5 bytes registers and the register structure is shown below.
Table 3-21 KSV_FIFO Registers
Address bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 reset
0x80 + 5 * (X-1) KSVx[7:0] xxh
0x81 + 5 * (X-1) KSVx[15:8] xxh
0x82 + 5 * (X-1) KSVx[23:16] xxh
0x83 + 5 * (X-1) KSVx[31:24] xxh
0x84 + 5 * (X-1) KSVx[39:32] xxh
NOTE: X = downstream device count
0x6D RX_SHA-1_HASH_13 xxh
0x6E RX_SHA-1_HASH_14 xxh
0x6F RX_SHA-1_HASH_15 xxh
0x70 RX_SHA-1_HASH_16 xxh
0x71 RX_SHA-1_HASH_17 xxh
0x72 RX_SHA-1_HASH_18 xxh
0x73 RX_SHA-1_HASH_19 xxh
Table 3-20 HDCP SHA-1 Hash Value Registers
Address bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0 reset
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