TLK110 Datasheet, PDF (71/104 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer

TLK110
www.ti.com
SLLS901A – DECEMBER 2011 – REVISED FEBRUARY 2012
Table 8-27. PHY Control Register (PHYCR), address 0x0019 (continued)
BIT NAME
11 MI Link
Status
10:8 RESERVED
7
Bypass LED
Stretching
6:5 LED CFG
DEFAULT
0,RO
<000>, RO
0,RW
<0>,RW
<0>,RW,Strap
DESCRIPTION
MII Link Status:
1 = 100BT Full-duplex Link is active and it was established using Auto-Negotiation.
0 = No active link of 100BT Full-duplex, established using Auto-Negotiation.
RESERVED: Writes ignored, read as 0.
Bypass LED Stretching:
1 = Bypass LED stretching.
0 = Normal LED operation.
This will bypass the LED stretching and the LEDs will reflect the internal value.
LED Configuration Modes:
Mode
1
2
3
LED_CFG[1]
Don't Care
0
1
LED_CFG[0] LED_LINK
LED_SPEED
1
ON for Good Link
OFF for No Link
0
ON in 100 Mb/s
ON for Good Link ^{OFF in 10 Mb/s}
0
BLINK for Activity
LED_ACT
ON Pulse for Activity
OFF for No Activity
ON for Collision
OFF for No Collision
ON for Full Duplex
OFF for Half Duplex
4:0 PHY ADDR <0000 0>,RO PHY Address:
Strapping configuration for PHY Address.
8.3.11 10Base-T Status/Control Register (10BTSCR)
This register provides the ability to control and read status of the PHY’s internal 10Base-T functionality.
BIT
15:14
13
12:9
8
7
6:5
4
3:1
0
Table 8-28. 10Base-T Status/Control Register (10BTSCR), address 0x001A
NAME
DEFAULT
DESCRIPTION
RESERVED <000>, RO RESERVED: Writes ignored, read as 0.
Receiver TH 0,RW
Lower Receiver Threshold Enable:
1 = Enable 10Base-T lower receiver threshold to allow operation with longer cables
0 = Normal 10Base-T operation.
Squelch
<0000>,RW
Squelch Configuration:
Used to set the Peak Squelch ‘ON’ threshold for the 10Base-T receiver. Every step is equal to
50mV and allow raising/lowering the Squelch threshold from 200mV to 600mV. The default
Squelch threshold is set to 200mV.
RESERVED 0, RO
RESERVED: Writes ignored, read as 0.
NLP Disable 0,RW
NLP Transmission Control:
1 = Disable transmission of NLPs.
0 = Enable transmission of NLPs.
RESERVED <00>, RO RESERVED: Writes ignored, read as 0.
Polarity Status 0,RO
10Mb Polarity Status:
1 = Inverted Polarity detected.
0 = Correct Polarity detected.
This bit is a duplication of bit 12 in the PHYSTS register (0x0010). Both bits will be cleared
upon a read of 10BTSCR register, but not upon a read of the PHYSTS register.
RESERVED <000>, RO RESERVED: Writes ignored, read as 0.
Jabber Disable 0,RW
Jabber Disable:
1 = Jabber function disabled.
0 = Jabber function enabled.
Note: This function is applicable only in 10Base-T
Copyright © 2011–2012, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Link(s): TLK110
Register Block
71