STE400P STMicroelectronics, STE400P Datasheet - Page 12

• Manufacturer Part Number: STE400P
• Description: STE400P - 4 PORT 10-100 FAST ETHERNET TRANSCEIVER - PHY DATASHEET
• Manufacturer: STMicroelectronics

STE400P
Table 3. Register Descriptions
12/34
PR1, MII Status Register. All the bits of this register are read only.
LL* = Latching Low and clear by read. LH* = Latching High and clear by read.
PR2- PID HI, PHY Identifier(HI)
PR3- PID LO, PHY Identifier (LO)
15~10
10~7
15~0
Bit #
15
14
13
12
11
6
5
4
3
2
1
0
PHYID1
PHYID2
Name
TXHD
MFPS
TXFD
10HD
10FD
LINK
ANC
JAB
EXT
RF
AN
T4
---
100BASE-T4 ability.
Always 0, since STE400P has no T4 ability.
100BASE-TX full duplex ability.
Always 1, since STE400P has the 100BASE-TX full duplex ability.
100BASE-TX half duplex ability.
Always 1, since STE400P has the 100BASE-TX half duplex ability.
10BASE-T full duplex ability.
Always 1, since STE400P has 10Base-T full duplex ability.
10BASE-T half duplex ability.
Always 1, since STE400P has 10Base-T half duplex ability.
Reserved
MF Preamble Suppression
0 = Will not accept management frames with preamble
1 =Accepts management frames with preamble suppressed.
Auto-Negotiation Completed.
0: Auto-Negotiation process is not completed.
1: Auto-Negotiation process is completed.
Result of remote fault detection.
0: No remote fault condition detected.
1: Remote fault condition detected.
This bit is set when the Link Partner transmits a remote fault
condition (PR5 bit 13 = 1).
Auto-Negotiation ability.
Always 1, since STE400P has the Auto-Negotiation ability.
Link status.
0: a failure link condition occurred. Read to set.
1: a valid link is established.
Jabber detection.
1: jabber condition is detected (10Base-T only).
Extended register supporting.
Always 1, since STE400P supports extended register
Pls. see NOTE on next page
Please see NOTE on next page
suppressed. A minimum of 32 preamble bits are required
following power-on or hardware reset. One IDLE bit is
required between any two management transactions as per
IEEE 802.3u specification.
Descriptions
Default Val
000000b
1C04h
0
1
1
1
1
0
0
0
0
1
0
0
1
RW Type
RO/LH*
RO/LH*
RO/LL*
R/W
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO