STE100P_06 Datasheet, PDF (10/31 Pages) STMicroelectronics – 10/100 FAST ETHERNET 3.3V TRANSCEIVER

STE100P
Table 5. Register Descriptions (continued)
Bit #
Name
Descriptions
Default Val RW Type
6
MFPS MF Preamble Suppression
1
RO
1 =Accepts management frames with pre-amble suppressed.
0 = Will not accept management frames with preamble
suppressed. The value of this bit is controlled by bit 1 of PR20.
Its default of 1 indicates that the SFEPHY1 accepts
management frame without preamble. 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.
5
ANC Auto-Negotiation Completed.
0
RO
0: Auto-Negotiation process is not completed.
1: Auto-Negotiation process is completed. (PR0, Bit 12 is set)
4
RF
Result of remote fault detection.
0
RO/LH*
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).
3
AN
Auto-Negotiation ability.
1
RO
Always 1, since STE100P has the Auto-Negotiation ability.
2
LINK Link status.
0: a failure link condition occurred. (Latched until read)
1: a valid link is established.
0
RO/LL*
1
JAB
Jabber detection.
1: jabber condition is detected (10Base-T only).
0
RO/LH*
0
EXT Extended register supporting.
Always 1, since STE100P supports extended register
1
RO
LL* = Latching Low and clear by read. LH* = Latching High and clear by read.
PR2- PID1, PHY Identifier 1
15~0
PHYID1 Part one of PHY Identifier.
1C04h
RO
Assigned to the 3^rd to 18^th bits of the Organizationally Unique
Identifier (OUI). (The ST OUI is 0080E1 hex).
PR3- PID2, PHY Identifier 2
15~10
PHYID2 Part two of PHY Identifier.
000000b
RO
Assigned to the 19^th to 24^th bits of the Organizationally Unique
Identifier (OUI).
9~4
MODEL Model number of STE100P.
Six bits manufacture’s model number.
000001b
RO
3~0
REV Revision number of STE100P.
Four bits manufacture’s revision number.
0001b
RO
PR4- ANA, Auto-Negotiation Advertisement
15
NXTPG Next Page ability.
0
RO
Always 0: since STE100P does not provide next page ability.
14
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Reserved
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