SLXT970AQC.B11-831643 Cortina Systems Inc, SLXT970AQC.B11-831643 Datasheet - Page 71

• 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

Datasheet
19.15
19.14
19.13
19.12
19.11
19.10
19.9
19.8
19.7:6
19.5
19.4
19.3
1. R/W = Read/Write
2. The default value of bit 19.13 is determined by pin MF1.
3. If auto-negotiation is disabled, the default value of bit 19.8 is determined by pin CFG1. If auto-neg is enabled, the default
4. The default value of bit 19.4 is determined by pin MF2 Operation.
5. The default value of bit 19.3 is determined by pin MF3 Operation.
6. If auto-negotiation is disabled, default value of bit 19.2 is determined by pin MF4. If auto-negotiation is enabled, default value
Bit
value of bit 19.8 = 0.
of bit 19.2 = 0.
Table 55. Configuration Register (Address 19, Hex 13) (Sheet 1 of 2)
Reserved
Txmit Test
(100BASE-TX)
Repeater Mode
MDIO_INT
TP Loopback
(10BASE-T)
SQE
(10BASE-T)
Jabber
(10BASE-T)
Link Test
(10BASE-T)
LEDC
Programming bits
Advance TX Clock
5B Symbol/
(100BASE-X only)
4B Nibble
Scrambler
(100BASE-X only)
Name
Write as 0; ignore on read.
1 = 100BASE-T transmit test enabled, LXT970A Transceiver transmits
data regardless of link status. This function is the analog of the link test
function (19.8) for 100BASE-TX.
0 = Normal operation.
1 = Enable Repeater Mode.
0 = Enable DTE Mode.
1 = Enable interrupt signaling on MDIO (if 17.1 = 1).
0 = Normal operation (MDIO Interrupt disabled).
Bit is ignored unless the interrupt function is enabled
1 = Disable 10BT TP Loopback. Data transmitted by the MAC will not
loopback to the RXD, RX_DV, and CRS pins.
0 = Enable 10BT TP Loopback - Preamble, SFD, and data are directly
looped back to the MII.
1 = Enable SQE.
0 = Disable SQE (Default).
1 = Disable jabber.
0 = Normal operation (jabber enabled).
1 = Disable 10BASE-T link integrity test.
0 = Normal operation (10BASE-T link integrity test enabled).
Determine condition indicated by LEDC.
bit 7 bit 6
1 = TX clock is advanced relative to TXD<4:0> and TX_ER by 1/2
TX_CLK cycle.
0 = Normal operation.
1 = 5-bit Symbol Mode (Bypass encoder/decoder);
0 = 4-bit Nibble Mode (Normal operation).
1 = Bypass transmit scrambler and receive descrambler.
0 = Normal operation (scrambler and descrambler enabled).
In FX mode, the LXT970A Transceiver automatically bypasses the
Scrambler. Selecting Scrambler bypass in FX mode causes the
LXT970A Transceiver to also bypass the 4B/5B encoder and enable
Symbol mode MII operation.
0
0
1
1
RXD<4:0> symbol data is not aligned.
0
1
0
1
Description
LEDC indicates collision
LEDC is off
LEDC indicates activity.
LEDC is continuously on (for diagnostic use).
Intel
Description
®
LXT970A Dual-Speed Fast Ethernet Transceiver
(17.1 = 1).
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
1
Default
Note 2
Note 3
Note 4
Note 5
N/A
0,0
0
0
0
0
0
0
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