TLK111_14 Datasheet, PDF (73/110 Pages) Texas Instruments – PHYTER® Industrial Temperature 10/100Mbs Ethernet Physical Layer Transceiver

TLK111
www.ti.com
SLLSEF8B – AUGUST 2013 – REVISED JANUARY 2014
Table 8-28. PHY Control Register (PHYCR), address 0x0019 (continued)
BIT NAME
11 MI Link
Status
DEFAULT
0, RO
10:8 RESERVED
7
Bypass LED
Stretching
000, RO
0, RW
6:5 LED CFG
0, RW
0, RW,
Pin_Strap,
SWSC_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
Set this bit to 1 to bypass the LED stretching; the LEDs reflect the internal value.
LED Configuration Modes:
Mode
1
2
3
LED_CFG[1]
Don't Care
0
1
LED_CFG[0]
1
0
0
LED_LINK
LED_SPEED
ON for Good Link
OFF for No Link
ON in 100 Mb/s
ON for Good Link ^{OFF in 10 Mb/s}
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 1, RO
PHY Address:
Strapping configuration for PHY Address.
8.1.25 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 8-29. 10Base-T Status/Control Register (10BTSCR), address 0x001A
NAME
RESERVED
Receiver TH
DEFAULT
000, RO
0, RW
Squelch
0000, RW
RESERVED
NLP Disable
0, RO
0, RW
RESERVED 00, RO
Polarity Status 0, RO
RESERVED 000, RO
Jabber Disable 0, RW
DESCRIPTION
RESERVED: Writes ignored, read as 0.
Lower Receiver Threshold Enable:
1 = Enable 10Base-T lower receiver threshold to allow operation with longer cables
0 = Normal 10Base-T operation
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: Writes ignored, read as 0.
NLP Transmission Control:
1 = Disable transmission of NLPs
0 = Enable transmission of NLPs
RESERVED: Writes ignored, read as 0.
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: Writes ignored, read as 0.
Jabber Disable:
1 = Jabber function disabled
0 = Jabber function enabled
Note: This function is applicable only in 10Base-T
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