SC92031L SILAN [Silan Microelectronics Joint-stock], SC92031L Datasheet - Page 15

• Manufacturer Part Number: SC92031L
• Description: 10/100 MBPS INTEGRATED PCI ETHERNET MEDIA ACCESS CONTROLLER AND PHYSICAL LAYER
• Manufacturer: SILAN [Silan Microelectronics Joint-stock]

INTERNAL PHY REGISTER DESCRIPTION
Basic Mode Control Register (Offset 00, R/W)
Basic Mode Status Registers (Offset 01, R)
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11-10
10-6
7-0
Bit
Bit
15
14
13
12
15
14
13
12
11
9
8
5
4
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
R
-
-
-
-
Reset
-
Spd_Set
Auto
Enable (ANE)
-
Restart
Negotiation
Duplex Mode
-
100Base-T4
100Base_TX_FD
100BASE_TX_HD
10Base_T_FD
10BASE_T_HD
-
Auto
Complete
Remote Fault
Name
Name
Negotiation
negotiation
Auto
This bit sets the status and control registers of the PHY (register 00) in
a default state. This bit is self-clearing. 1=software reset; 0=normal
operation.
Reserved
This bit sets the network speed. 1=100Mbps;
0=10Mbps. This bit’ s initial value comes from 93C46.
This bit enables/disables the Nway auto-negotiation function. Set to 1
to enable auto-negotiation, bit13 will be ignored.
Set to 0 disables auto-negotiation, bit13 and bit8 will determine the link
speed and the data transfer mode, respectively. This bit’ s initial value
comes from 93C46.
Reserved
This bit allows the Nway auto-negotiation function to be reset.
1=re-start auto-negotiation;
0=normal operation.
This bit sets the duplex mode. 0=normal operation; 1=full-duplex. This
bit’ s initial value come from 93C46.
If bit12 = 1, read = status write = register value.
If bit12 = 0, read = write = register value.
Reserved
1 = enable 100Base-T4 support;
0 = suppress 100Base- T4 support.
1 = enable 100Base-TX full duplex support;
0 = suppress 100Base-tx full duplex support;
1 = enable 100Base-TX half-duplex support;
0 = suppress 100Base-TX half-duplex support;
1 = enable 10Base_T full duplex support;
0 = suppress 10Base_T full duplex support;
1 = enable 10BASE_T half-duplex support;
0 = suppress 10BASE_T half-duplex support;
Reserved
1 = auto-negotiation process completed;
0 = auto-negotiation process not completed.
1 = remote fault condition detected (cleared on read);
0 = no remote fault condition detected.
Description/Usage
Description/Usage
REV:1.0
SC92031
(To be continued)
Page 15 of 38
2004.08.03