SLXT970AQC.B11-831643 Cortina Systems Inc, SLXT970AQC.B11-831643 Datasheet - Page 27

• 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

2.3
2.3.1
2.3.1.1
Datasheet
Advertise 10 HD/FD
Advertise 10/100 HD
Advertise 10/100 HD/FD
Force 100FX Operation
Force 100TX Operation
Force 10T Operation
Force Full-Duplex Operation
Disable 10T Link Test
Enable 10T Link Test
1. Refer to
2. Refer to
1. Refer to
2. Refer to
Table 13. Operating Configurations / Auto-Negotiation Enabled (Sheet 2 of 2)
Table 14. Operating Configurations / Auto-Negotiation Disabled
Configuration
Desired
Table 12
Table 14
Table 12
Table 13
Desired Configuration
Operating Requirements
Power Supply Requirements
The LXT970A Transceiver requires a 5V power supply. Power should be supplied from a single
source to the VCC, VCCA, VCCT, and VCCR power pins. A ground return path must be provided
to the GND, GNDA, GNDT, and GNDR pins. As a matter of practice, the power supply should be
as clean as possible. Filtering is recommended for the analog power pins (VCCA, VCCT, VCCR)
at least in the initial design. Consult the Design Recommendations section on
decoupling capacitor is recommended between each VCC pin and its respective GND, placed as
close to the device as possible.
Optional MII Power Supply
The MII may be powered by either a 3.3V or 5V source via the VCCIO pin. To avoid power
sequencing issues, the VCCIO pin should be supplied from the same source used to power the
other side of the MII interface. When VCCIO is supplied with 3.3V, the MII inputs are not tolerant
of 5V signal levels. The MDIO and MDC pins must be operated at the same voltage as the rest of
the MII interface.
for basic configurations.
for Hardware Control Interface functions available when auto-negotiation is disabled.
for basic configurations.
for Hardware Control Interface functions available when auto-negotiation is enabled.
1,2
V
V
V
MF
MF
MF
1,2
MF4
1, V
2, V
2, V
MF
MF
MF
4
3
3
Input Value
Intel
CFG1
High
High
High
®
Pin Name
LXT970A Dual-Speed Fast Ethernet Transceiver
CFG0
CFG0
CFG0
CFG1
CFG1
MF4
MF3
MF4
MF4
FDE
FDE
High
High
Low
V
V
V
V
Input Value
MF
MF
MF
MF
High
High
High
High
Low
Low
2, V
1, V
1, V
1, V
4.5
1
1
1
MF
MF
MF
MF
3
4
4
4
MDIO Registers
4.6
page 42
1
0
1
MDIO Registers
4.7
19.2 = 1
0.13 = 1
19.3 = 0
19.2 = 0
0.13 = 1
19.2 = 0
0.13 = 0
19.8 = 1
19.8 = 0
0.8 = 1
for details. A
0
1
1
4.8
0
0
1
27