CS8952(2001) View Datasheet(PDF) - Cirrus Logic
Part Name
Description
Manufacturer
CS8952 Datasheet PDF : 82 Pages
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CS8952
6.2 Basic Mode Status Register - Address 01h
15
14
13
100BASE-T4
100BASE-TX/ 100BASE-TX/
Full Duplex Half Duplex
12
10BASE-T/
Full Duplex
7
Reserved
6
MF Preamble
Suppression
5
Auto-Neg
Complete
4
Remote Fault
11
10BASE-T/
Half Duplex
3
Auto-Neg
Ability
10
9
8
Reserved
2
1
Link Status Jabber Detect
0
Extended
Capability
BIT
NAME
15 100BASE-T4
TYPE
RESET
Read Only 0
14 100BASE-TX/Full Read Only 1
Duplex
13 100BASE-TX/Half Read Only 1
Duplex
12 10BASE-T/Full
Duplex
Read Only 1
11 10BASE-T/Half
Duplex
Read Only 1
10:7 Reserved
Read Only 0000
6
MF Preamble Sup- Read Only 1
pression
5
Auto-Neg Complete Read Only 0
4
Remote Fault
Read Only 0
DESCRIPTION
The CS8952 does not support 100BASE-T4 opera-
tion, so this bit will always read 0.
When this bit is set, it indicates that the CS8952 is
capable of 100BASE-TX Full-Duplex operation. This
bit reflects the status of the 100BASE-TX/Full-Duplex
bit in the Auto-Negotiation Advertisement Register
(address 04h).
When this bit is set, it indicates that the CS8952 is
capable of 100BASE-TX Half-Duplex operation. This
bit reflects the status of the 100BASE-TX/Half
Duplex bit in the Auto-Negotiation Advertisement
Register (address 04h).
When this bit is set, it indicates that the CS8952 is
capable of 10BASE-T Full-Duplex operation. This bit
reflects the status of the 10BASE-T/Full Duplex bit in
the Auto-Negotiation Advertisement Register
(address 04h).
When this bit is set, it indicates that the CS8952 is
capable of 10BASE-T Half-Duplex operation. This bit
reflects the status of the 10BASE-T/Half Duplex bit in
the Auto-Negotiation Advertisement Register
(address 04h).
When set, this bit indicates that the CS8952 is capa-
ble of accepting management frames regardless of
whether they are preceded by the preamble pattern.
When clear, it indicates that the management frame
must be preceded by the preamble pattern to be con-
sidered valid. This bit reflects the status of the MR
Preamble Enable bit in the PCS Sub-Layer Configu-
ration Register (address 17h).
This bit is set to a 1 when the auto-negotiation pro-
cess has completed. This is an indication that data is
valid in the Auto-Negotiation Advertisement Register
(address 04h), the Auto-Negotiation Link Partner
Ability Register (address 05h), and the Auto-Negotia-
tion Expansion Register (address 06h).
When auto-negotiation is enabled, this bit is set if the
Remote Fault bit is set in the Auto-Negotiation Link
Partner Ability Register (address 05h). When auto-
negotiation is disabled, this bit will be set when a Far-
End Fault Indication for 100BASE-TX is detected.
34
CrystalLAN™ 100BASE-X and 10BASE-T Transceiver
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