SLXT973QC Cortina Systems Inc, SLXT973QC Datasheet - Page 73

• Manufacturer Part Number: SLXT973QC
• Manufacturer: Cortina Systems Inc

Specifications of SLXT973QC

• Lead Free Status / Rohs Status: Not Compliant

LXT973 Transceiver
Datasheet
249426, Revision 6.0
13 July 2007
Table 25
Cortina Systems
Port Configuration Register (Address 16)
®
1. Refer to
2. Register bit 16.0 is latched in from FIBER_TPn on hardware reset.
16.15
16.14
16.13
16.12
16.10
16.11
LXT973 10/100 Mbps Dual-Port Fast Ethernet PHY Transceiver
16.9
16.8
16.7
16.6
16.5
16.4
16.3
16.2
16.1
16.0
Bit
Reserved
Link Test Disable
Transmit Disable
Bypass Scramble
(100BASE-TX)
Bypass 4B/5B
(100BASE-TX)
Jabber
(10BASE-T)
SQE
(10BASE-T)
TP Loopback
(10BASE-T)
CRS Select
(10BASE-T)
Reserved
PRE_EN
Reserved
10M Serial
Far End Fault
Transmission Enable
Alternate NP Feature
Fiber Select
Table 15 on page 65
Name
for Register Bit Descriptions.
Write as 0, ignore on read
1 = Force Link pass (sets appropriate registers
and LEDs to pass)
0 = Normal operation
1 = Disable twisted-pair transmitter
0 = Normal operation
1 = Bypass Scrambler and De-scrambler
0 = Normal operation
1 = Bypass 4B/5B encoder and decoder
0 = Normal Operation
1 = Disable Jabber
0 = Normal operation
1 = Enable Heart Beat
0 = Disable Heart Beat
1 = Disable twisted-pair loopback during half-
duplex operation
0 = Normal Operation - loopback in 10BASE-T,
half-duplex
1 = CRS de-assert extends to RXDV de-assert
0 = Normal operation
Write as 0, ignore on read
Preamble Enable.
0 = Set RXDV High coincident with SFD
1 = Set RXDV High and RXD = preamble when
CRS is asserted.
Write as 0, ignore on read
1 = 10BASE_T serial mode. 10 Mbps data is
driven serially on RXD<0> in this mode.
0 = Utilize normal MII mode-nibble.
1 = Enable Far End Fault transmission.
0 = Disable Far End Fault transmission.
1 = Enable Alternate auto-negotiation Next
Page feature.
0 = Disable Alternate auto-negotiation Next
Page feature.
1 = Select fiber mode for this port.
0 = Select twisted-pair mode for this port.
Description
12.0 Register Definitions
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1
Default
Note 2
LHR
Page 73
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0