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6.1.2 Register1: Status Register
RTL8305SB
2002/04/09
23
Rev.1.0
Reg.bit
1.15
1.14
Name
100Base_T4
100Base_TX_FD
Description
0: No 100Base-T4 capability.
1: 100Base-TX full duplex capable.
0: Not 100Base-TX full duplex capable.
1: 100Base-TX half duplex capable.
0: Not 100Base-TX half duplex capable.
1: 10Base-TX full duplex capable.
0: Not 10Base-TX full duplex capable.
1: 10Base-TX half duplex capable.
0: Not 10Base-TX half duplex capable.
The RTL8305SB will accept management frames with
preamble suppressed.
Mode
RO
RO
Default
0
1
1.13
100Base_TX_HD
RO
1
1.12
10Base_T_FD
RO
1
1.11
10Base_T_HD
RO
1
1.[10:7]
1.6
Reserved
MF Preamble
Suppression
RO
RO
0
1
The RTL8305SB accepts management frames without
preamble. Minimum of 32 preamble bits are required for the
first SMI read/write transaction after reset. One idle bit is
required between any two management transactions as defined
in IEEE802.3u specs.
1: Auto-negotiation process completed. MII Reg.4,5 are valid
if this bit is set.
0: Auto-negotiation process not completed.
1: Remote fault condition detected.
0: No remote fault.
When in 100FX mode, this bit means in-band signal
Far-End-Fault is detected.
1: Nway auto-negotiation capable. (permanently: 1)
1: Link is established. If link had ever failed, this bit will be 0
until after reading this bit again.
0: Link is failed.
0: No Jabber detected.
1.5
Auto-negotiate
Complete
RO
0
1.4
Remote Fault
RO/LH
0
1.3
Auto-Negotiation
Ability
Link Status
RO
1
1.2
RO/LL
0
1.1
Jabber Detect
Note: this function is not necessary for single chip.
Extended Capability 1: Extended register capable. (permanently: 1)
6.1.3 Register4: Auto-Negotiation Advertisement Register
RO
0
1.0
RO
1
Reg.bit
4.15
Name
Next Page
Description
1: Next Page enabled.
0: Next Page disabled. (Permanently: 0)
Permanently: 0
1: Advertises that RTL8305SB has detected a remote fault.
0: No remote fault detected.
1: Advertises that RTL8305SB has flow control capability.
0: Without flow control capability.
Technology not supported. (Permanently =0)
1: 100Base-TX full duplex capable.
0: Not 100Base-TX full duplex capable.
1: 100Base-TX half duplex capable.
0: Not 100Base-TX half duplex capable.
1: 10Base-TX full duplex capable.
0: Not 10Base-TX full duplex capable.
1: 10Base-TX half duplex capable.
0: Not 10Base-TX half duplex capable.
[00001]=IEEE802.3
Mode
RO
Default
0
4.14
4.13
Acknowledge
Remote Fault
RO
RW
0
0
4.[12:11]
4.10
Reserved
Pause
RO
RW
0
From pin
4.9
4.8
100Base-T4
100Base-TX-FD
RO
RW
0
From pin
4.7
100Base-TX
RW
From pin
4.6
10Base-T-FD
RW
From pin
4.5
10Base-T
RW
1
4.[4:0]
Selector Field
RW
00001