User Guide — EP9134_UG V0.7
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27
Table 3-19
RX_Bstatus (MSB, [15:8]) Register
$52
bit
7
6
5
4
3
2
1
0
W
-
-
-
-
CASC_EXCEED
DEPTH[2:0]
Reset:
0
0
0
0
0
0
0
0
These 2 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.
DEV_EXCEED — MAX_DEVS_EXCEEDED Bit in HDCP Bstatus register
Value written into this bit will reflect to the HDCP Bstatus register, bit 7, MAX_DEVS_EXCEEDED
bit.
DEVICE_COUNT[6:0] — DEVICE_COUNT Bits in HDCP Bstatus register
Value written into this bit will reflect to the HDCP Bstatus register, bit 6 ~ bit 0,
DEVICE_COUNT[6:0] bit.
CASC_EXCEED — MAX_CASCADE_EXCEEDED Bit in HDCP Bstatus register
Value written into this bit will reflect to the HDCP Bstatus register, bit 11,
MAX_CASCADE_EXCEEDED bit.
DEPTH[2:0] — DEPTH Bits in HDCP Bstatus register
Value written into this bit will reflect to the HDCP Bstatus register, bit 10 ~ bit 8, DEPTH[2:0] bit.
3.3.1.18
RX_SHA-1_HASH Registers ($60 ~ $73)
These 20-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.
Table 3-20 HDCP SHA-1 Hash Value Registers
Address
bit7
bit6
bit5
bit4
bit3
bit2
bit1
bit0
reset
0x60
RX_SHA-1_HASH_0
xxh
0x61
RX_SHA-1_HASH_1
xxh
0x62
RX_SHA-1_HASH_2
xxh
0x63
RX_SHA-1_HASH_3
xxh
0x64
RX_SHA-1_HASH_4
xxh
0x65
RX_SHA-1_HASH_5
xxh
0x66
RX_SHA-1_HASH_6
xxh
0x67
RX_SHA-1_HASH_7
xxh
0x68
RX_SHA-1_HASH_8
xxh
0x69
RX_SHA-1_HASH_9
xxh
0x6A
RX_SHA-1_HASH_10
xxh
0x6B
RX_SHA-1_HASH_11
xxh
0x6C
RX_SHA-1_HASH_12
xxh
Exp
62
62
p
Explo
pl
plore
pl
ore
bit7
t7
e
e
ore
plo
Exp
E
Microelectronics
er
DCP Bs
DCP B
($60 ~
($60 ~
only. Th
nly. Th
HDCP
HDC
le 3-20
le 3-20
M
Inc.
Confidential
it 6 ~ bi
6 ~ b
CP Bsta
CP Bsta
regist
regist
fo
fo
for
fo
r
r
fo
南京东平
bit6
bit6
东平电子
he va
e va
P is invok
P is inv
0 HDCP
0 HDC
平
平
东平
京东
南京
南
or
r
Internal
$73)
$73)
value w
lue
Use
tatus re
tatus re
Only
er, bit
er, b