FWLXT9785BC.A4 Intel, FWLXT9785BC.A4 Datasheet - Page 208

• Manufacturer Part Number: FWLXT9785BC.A4
• Manufacturer: Intel

Specifications of FWLXT9785BC.A4

• Lead Free Status / RoHS Status: Not Compliant

208
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
Table 92. Port Configuration Register (Address 16, Hex 10) (Sheet 2 of 2)
1. R/W = Read/Write
2. LSHR = Default value is derived from a single device input pin state or a group of device input pin states as
3. The default value of Register bit 16.0 is determined by the G_FX/TP_L pin.
4. The default value of Register bit 16.5 is determined by the PREASEL pin. The BGA15 package does not
5. The BGA15 package does not support fiber. Default for the BGA15 package is 0.
6. NA means the bits do not have a default value and may initially contain any value.
Bit
10
9
8
7
6
5
4
3
2
1
0
the pin(s) are latched at startup or hardware reset.
If G_FX/TP_L is tied Low, the default value of Register bit 16.0 = 0. If G_FX/TP_L is not tied Low, the
default value of Register bit 16.0 = 1. The BGA15 package does not have a G_FX/TP_L hardware
configuration pin.
have a PREASEL hardware configuration pin and has a default of 0.
Name
Jabber
(10BASE-T)
Reserved
TP Loopback
(10BASE-T)
Reserved
Reserved
Preamble Enable
Reserved
Reserved
Far End Fault
Transmission
Enable
Invalid for
BGA15
Reserved
Fiber Select
Reserved for
BGA15
5
Description
0 = Normal operation
1 = Jabber function is enabled; however, jabber status
Write as 0, ignore on Read.
0 = Normal operation
1 = Disable twisted-pair loopback during half-duplex
Note: Valid function in SMII and S-SMII modes only.
Write as 1, ignore on Read
Write as 0, ignore on Read
10 Mbps
100
Mbps
Write as 0, ignore on Read
Write as 0, ignore on Read
0 = Disable Far End Fault transmission
1 = Enable Far End Fault transmission
Write as '0', ignore on Read (BGA15).
Write as 0, ignore on Read.
0 = Select twisted-pair mode for this port
1 = Select fiber mode for this port
Write as '0', ignore on Read (BGA15).
NOTE: Default for BGA15 is 0.
reporting to Register bit 1.1 is disabled
operation
0 = No preamble (default)
1 = Preamble enabled
NOTE: Default for BGA15 package is 0.
No effect
Revision Date: 30-May-2006
Document Number: 249241
Type
Revision Number: 010
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
Datasheet
LSHR
LSHR
Default
N/A
0
0
1
1
0
0
0
1
0
2,4
2,3