WJLXT972ALC.A4-857341 Cortina Systems Inc, WJLXT972ALC.A4-857341 Datasheet - Page 77

• Manufacturer Part Number: WJLXT972ALC.A4-857341
• Description: TXRX ETH 10/100 SGL PORT 64-LQFP
• Manufacturer: Cortina Systems Inc

Specifications of WJLXT972ALC.A4-857341

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 1008-1042

LXT972A PHY
Datasheet
249186, Revision 5.2
13 September 2007
Table 53
Table 54
Cortina Systems
LED Configuration Register - Address 20, Hex 14 (Sheet 2 of 2)
Digital Configuration Register - Address 26, Hex 1A (Sheet 1 of 2)
®
20.7:4
20.3:2
20.1
20.0
1. R/W = Read /Write. RO = Read Only. LH = Latching High
2. Link status is the primary LED driver. The LED is asserted (solid ON) when the link is up.
3. Combined event LED settings are not affected by Pulse Stretch register bit 20.1. These display settings
4. Duplex status is the primary LED driver. The LED is asserted (solid ON) when the link is full-duplex.
5. Values are approximations. Not guaranteed or production tested.
26.15:12
26.11
26.10
26.9
26.8:6
1. R/W = Read /Write, RO = Read Only
LXT972A Single-Port 10/100 Mbps PHY Transceiver
Bit
The secondary LED driver (Receive or Activity) causes the LED to change state (blink).
Activity causes the LED to blink, regardless of the link status.
are stretched regardless of the value of 20.1.
Collision status is the secondary LED driver. The LED changes state (blinks) when a collision occurs.
Bit
LED3
Programming
bits
LEDFREQ
PULSE-
STRETCH
Reserved
Name
Reserved
MII Drive Strength
Reserved
Show Symbol Error
Reserved
5
Name
0000 =Display Speed Status
0001 =Display Transmit Status
0010 =Display Receive Status (Default)
0011 = Display Collision Status
0100 =Display Link Status
0101 =Display Duplex Status
0110 = Unused
0111 = Display Receive or Transmit Activity
1000 =Test mode- turn LED on
1001 =Test mode- turn LED off
1010 =Test mode- blink LED fast
1011 = Test mode- blink LED slow
1100 = Display Link and Receive Status combined
1101 = Display Link and Activity Status combined
1110 = Display Duplex and Collision Status combined
1111 = Unused
00 = Stretch LED events to 30 ms.
01 = Stretch LED events to 60 ms.
10 = Stretch LED events to 100 ms.
11 = Reserved.
0 = Disable pulse stretching of all LEDs.
1 = Enable pulse stretching of all LEDs.
Write as ‘0’. Ignore on Read.
(Stretched)
(Stretched)
(Stretched)
Write as ‘0’. Ignore on Read.
MII Drive Strength
0 = Normal MII drive strength
1 = Increase MII drive strength
Write as ‘0’. Ignore on Read.
Show Symbol Error
0 = Normal MII_RXER
1 = 100BASE-X Error Signal to MII_RxER
Write as ‘0’. Ignore on Read.
3
3
3
Description
Description
2
2
Product-Specific Registers
9.0 Register Definitions -
4
Type
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
1
1
Default
Default
0010
Page 77
0000
00
1
0
0
0
0
0