Datasheet

TLK105
TLK106
SLLSEB8A –AUGUST 2012–REVISED MARCH 2013 www.ti.com
8.11 LED Control Register (LEDCR)
This register provides the ability to directly manually control the Link LED output.
Table 8-26. LED Control Register (LEDCR), address 0x0018
BIT NAME DEFAULT DESCRIPTION
15:11 RESERVED <0000 0>, ro RESERVED: Writes ignored, read as 0.
10:9 Blink Rate <10>,RW LED Blinking Rate (ON/OFF duration):
00 = 20Hz (50mSec)
01 = 10Hz (100mSec)
10 = 5Hz (200mSec)
11 = 2Hz (500mSec)
8 RESERVED RO RESERVED
7 LED Link Polarity 1, RW, LED Link Polarity Setting:
Pin_Strap 1 = Active High polarity setting
0 = Active Low polarity setting
Link LED polarity defined by strapping value of this pin. This register allows
override of this strapping value.
6 RESERVED RO RESERVED
5 RESERVED RO RESERVED
4 Drive Link LED 0,RW Drive LED Link to the forced On/Off setting defined in bit 1:
1 = Drive value of On/Off bit onto LED_LINK output pin
0 = Normal operation
3 RESERVED RO RESERVED
2 RESERVED RO RESERVED
1 Link LED On/Off Setting 0,RW Value to force on Link LED output
0 RESERVED RO RESERVED
8.12 PHY Control Register (PHYCR)
This register provides the ability to control and set general functionality inside the PHY.
Table 8-27. PHY Control Register (PHYCR), address 0x0019
BIT NAME DEFAULT DESCRIPTION
15 Auto MDI/X 1, RW, Auto-MDIX Enable:
Enable Pin_Strap 1 = Enable Auto-negotiation Auto-MDIX capability
0 = Disable Auto- negotiation Auto-MDIX capability
14 Force MDI/X 0, RW Force MDIX:
1 = Force MDI pairs to cross. (Receive on TPTD pair, Transmit on TPRD pair)
0 = Normal operation. (Transmit on TPTD pair, Receive on TPRD pair)
13 Pause RX 0, RO Pause Receive Negotiated Status: Indicates that pause receive should be enabled in the MAC.
Status Based on bits [11:10] in ANAR register and bits [11:10] in ANLPAR register settings.
This function shall be enabled according to IEEE 802.3 Annex 28B Table 28B-3, “Pause
Resolution”, only if the Auto-Negotiated Highest Common Denominator is a full duplex technology.
12 Pause TX 0,RO Pause Transmit Negotiated Status:
Status Indicates that pause transmit should be enabled in the MAC. Based on bits [11:10] in ANAR register
and bits [11:10] in ANLPAR register settings.
This function shall be enabled according to IEEE 802.3 Annex 28B Table 28B-3, “Pause
Resolution”, only if the Auto-Negotiated Highest Common Denominator is a full duplex technology.
11 MI Link 0, RO MII Link Status:
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
10:8 RESERVED <000>, RO RESERVED: Writes ignored, read as 0.
7 Bypass LED 0, RW Bypass LED Stretching:
Stretching 1 = Bypass LED stretching
0 = Normal LED operation
Set this bit to 1 to bypass the LED stretching; the LED reflects the internal value.
6 RESERVED RO RESERVED
64 Register Block Copyright © 2012–2013, Texas Instruments Incorporated
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