LAN8187_06 Datasheet, PDF (45/72 Pages) SMSC Corporation – ±15kV ESD Protected MII/RMII Fast-Ethernet PHY with HP Auto-MDIX and SMSC flexPWRTM

±15kV ESD Protected MII/RMII Fast-Ethernet PHY with HP Auto-MDIX and SMSC flexPWR^TM
Datasheet
Table 5.36 Register 6 - Auto Negotiation Expansion
ADDRESS
NAME
DESCRIPTION
MODE DEFAULT
6.15:5
Reserved
RO
0
6.4
Parallel Detection 1 = fault detected by parallel detection logic
Fault
0 = no fault detected by parallel detection logic
RO/
0
LH
6.3
Link Partner Next 1 = link partner has next page ability
Page Able
0 = link partner does not have next page ability
RO
0
6.2
Next Page Able 1 = local device has next page ability
0 = local device does not have next page ability
RO
0
6.1
Page Received 1 = new page received
0 = new page not yet received
RO/
0
LH
6.0
Link Partner Auto- 1 = link partner has auto-negotiation ability
RO
0
Negotiation Able ^{0 = link partner does not have auto-negotiation ability}
Table 5.37 Register 16 - Silicon Revision
ADDRESS
16.15:10
16.9:6
16.5:0
NAME
Reserved
Silicon Revision
Reserved
DESCRIPTION
Four-bit silicon revision identifier.
MODE DEFAULT
RO
0
RO
0001
RO
0
Table 5.38 Register 17 - Mode Control/Status
ADDRESS
17.15:14
17.13
17.12
17.11
17.10
17.9
17.8:7
NAME
Reserved
EDPWRDOWN
Reserved
LOWSQEN
MDPREBP
FARLOOPBACK
Reserved
DESCRIPTION
Write as 0; ignore on read.
Enable the Energy Detect Power-Down mode:
0 = Energy Detect Power-Down is disabled
1 = Energy Detect Power-Down is enabled
Write as 0, ignore on read
The Low_Squelch signal is equal to LOWSQEN AND
EDPWRDOWN.
Low_Squelch = 1 implies a lower threshold
(more sensitive).
Low_Squelch = 0 implies a higher threshold
(less sensitive).
Management Data Preamble Bypass:
0 – detect SMI packets with Preamble
1 – detect SMI packets without preamble
Force the module to the FAR Loop Back mode, i.e. all
the received packets are sent back simultaneously (in
100Base-TX only). This bit is only active in RMII
mode. In this mode the user needs to supply a 50MHz
clock to the PHY. This mode works even if MII Isolate
(0.10) is set.
Write as 0, ignore on read.
MODE DEFAULT
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
00
SMSC LAN8187/LAN8187I
45
DATASHEET
Revision 1.0 (12-14-06)