Cirrus Logic CS8952 - Manual (Page 49)

CS8952
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver 49
DS206F1
6.13 Scrambler Key Initialization Register - Address 14h
15 14 13 12 11 10 9 8
Load Reserved Scrambler Initialization Key
7 6 5 4 3 2 1 0
Scrambler Initialization Key
BIT NAME TYPE RESET DESCRIPTION
15 Load Read/Set 0 When this bit is set, the scrambler will be loaded with
the value in the Scrambler Initialization Key field.
When the load is complete, this bit will clear automat-
ically.
14:11 Reserved Read Only 0000 These bits should be read as don’t cares and, when
written, should be written to 0.
10:0 Scrambler Initializa-
tion Key Read/Write Reset value is
dependent on the
PHY Address field
of the Self Status
Register (address
19h).
This field allows the Scrambler to be loaded with a
user-definable key sequence. A value of 000h has
the effect of bypassing the scrambler function.
This is valuable for testing purposes to allow a deter-
ministic response to test stimulus without a synchro-
nization delay.
Note: This field is disabled, and writes to this bit are
ignored when the National Compatibility Mode bit of
the 10BASE-T Configuration Register (address 1Ch)
is set.