AC206-DS02-R View Datasheet(PDF) - Broadcom Corporation
Part Name
Description
MFG CO.
'AC206-DS02-R' PDF : 70 Pages View PDF
Preliminary Data Sheet
07/08/02
AC206
DIAGNOSTIC REGISTER
Register
Bit
Name
18.15 Lp_lpbk
18.14
18.13
18.12
18.11
18.10
18.9
Send_nlp
Force link
pass bt
Force link
pass tx
DPLX
Speed
RX_PASS
18.8
RX_LOCK
18.[7:4]
18.[3:0]
ARB_STATE
HIGHEST
ARB_STATE
LOWEST
Table 32: Diagnostic Register
Description
Link pulse loopback.
1 = loopback the link pulse for auto-negotiation testing
1 = force link pulse generator to send nlp event in auto-negotiation
mode.
1 = force 10BASE-T link pass
Mode Default
RW
0
RW
0
RW
0
1 = force 100 TX link pass
RW
0
This bit indicates the result of the Auto-Neg for duplex arbitration.
RO
This bit indicates the result of the Auto-Neg for data speed arbitration. RO
In 10BASE-T mode, this bit indicates that Manchester data has been RC
detected.
In 100BASE-T mode, it indicates valid signal has been received but
not necessarily locked on to.
Indicates the receive PLL has locked onto the received signal for the RC
selected speed of operation (10BASE-T or 100BASE-TX). This bit is
set whenever a cycle-slip occurs, and will remain set until it is read.
Highest state of Auto-Negotiation state machine since reset on last RC
read operation.
Lowest state of Auto-Negotiation state machine since reset on last
RC
read operation.
0
X
X
X
TBD
TBD
CABLE LENGTH REGISTER
Register
Bit
20.[15:9]
20.8
20.[7:4]
20.[3:0]
Name
Reserved
Adaptation
disable
Cable
Length
Indication
Adaptation
Low limit
Table 33: Cable Length Register
Description
1 = Disable adaptation
These bits indicate cable length from 0 to 150m. Each bit represents
10m. For example, if the cable length is 100m then bits [7:4] = 1010.
These bits are only applicable to 100TX mode.
Adaptation setting, when SD signal is first detected.
Mode Default
RO 0000000
RW 0
RW XXXX
RO XXXX
Document AC206-DS05-405-R
Broadcom
PHY Registers Page 29
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