SLXT970AQC.B11-831643 Cortina Systems Inc, SLXT970AQC.B11-831643 Datasheet - Page 64

• Manufacturer Part Number: SLXT970AQC.B11-831643
• Manufacturer: Cortina Systems Inc

Specifications of SLXT970AQC.B11-831643

• Number Of Receivers: 1
• Data Rate: 10/100Mbps
• Operating Supply Voltage (typ): 5V
• Operating Temperature Classification: Commercial
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Mounting: Surface Mount
• Pin Count: 64
• Operating Temperature (max): 70C
• Operating Temperature (min): 0C
• Lead Free Status / RoHS Status: Not Compliant

Intel
64
0.15
0.14
0.13
0.12
0.11
0.10
0.9
0.8
0.7
0.6:4
0.3
0.2
0.1:0
1. R/W = Read/Write
2. If auto-negotiation is enabled, this bit is ignored. If auto-negotiation is disabled, the default value of bit 0.13 is determined by
3. The default value of bit 0.12 is determined by pin MF0.
4. The LXT970A Transceiver internally maintains all set values of the configuration registers upon exiting power-down mode. A
5. The default value of bit 0.10 is determined by pin TRSTE.
6. If auto-negotiation is enabled, the default value of bit 0.9 is determined by pin CFG0. If auto-negotiation is disabled, the
7. If auto-negotiation is enabled, this bit is ignored. If auto-negotiation is disabled, the default value of bit 0.8 is determined by
8. This bit is ignored unless loopback is enabled (0.14 = 1).
Bit
SC = Self Clearing
pin CFG0.
delay of 500 ns minimum is required from the time power down is cleared until any register can be written.
default value of
bit 0.9 = 0.
pin FDE.
Table 45. Control Register (Address 0)
®
LXT970A Dual-Speed Fast Ethernet Transceiver
Reset
Loopback
Speed
Selection
Auto-
Negotiation
Enable
Power Down
Isolate
Restart Auto-
Negotiation
Duplex Mode
Collision Test
Transceiver
Test Mode
Master-Slave
Enable
Master-Slave
Value
Reserved
Name
1 = Reset chip.
0 = Enable normal operation.
1 = Enable loopback mode. When Loopback is enabled, during 100
Mbps operation, the LXT970A Transceiver disconnects its transmitter
and receiver from the network. Data sent by the controller passes
through the chip and then gets looped back to the MII. During 10 Mbps
operation the preamble, SFD, and data loop directly back to the MII.
0 = Disable loopback mode.
1 = 100 Mbps
0 = 10 Mbps
1 = Enable auto-negotiate process (overrides speed select and duplex
mode bits).
0 = Disable auto-negotiate process.
1 = Enable power down.
0 = Enable normal operation.
1 = Electrically isolate LXT970A Transceiver from MII.
0 = Normal operation.
1 = Restart auto-negotiation process.
0 = Normal operation.
1 = Enable full-duplex.
0 = Enable half-duplex.
1 = Enable COL signal test. Bit 0.14 must be enabled to use this bit.
This bit is used in conjunction with bit 0.14 to test the COL output.
0 = Disable COL signal test.
Not Supported.
Not Supported.
Not Supported.
Description
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
SC
SC
1
0
Datasheet
Default
Note 2
Note 3
Note 4
Note 5
Note 6
Note 7
0
0
8
0
0
0
0
Note