HBLXT9785EHC.B2Q E000 Intel, HBLXT9785EHC.B2Q E000 Datasheet - Page 214

• Manufacturer Part Number: HBLXT9785EHC.B2Q E000
• Manufacturer: Intel

Specifications of HBLXT9785EHC.B2Q E000

• Lead Free Status / RoHS Status: Not Compliant

214
LXT9785 and LXT9785E Advanced 8-Port 10/100 Mbps PHY Transceivers
Table 96. LED Configuration Register (Address 20, Hex 14) (Sheet 2 of 2)
Table 97. Receive Error Count Register (Address 21, Hex 15)
NOTE: Intel recommends reading this register once every time link is established to clear the register.
1. R/W = Read/Write
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.
1. R = Read Only, LH = Latching High – cleared when read
15:0
Bit
Bit
7:4
3:2
The secondary LED driver (Receive, Activity, or Error) causes the LED to change state (blink).
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.
1
0
Name
Receive Error
Count
Name
LED3
Programming
bits
LEDFREQ
PULSE-
STRETCH
Reserved
Description
0000 = Display Speed Status
0001 = Display Transmit Status
0010 = Display Receive Status
0011 = Display Collision Status
0100 = Display Link Status
0101 = Display Duplex Status
0110 = Display Isolate Status
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 = Display Link and RxER Status combined
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
NOTE: Receive activity LEDs are initially active based upon
Write as 0, ignore on Read
Description
A 16-bit counter value indicating the number of times a
receive packet with errors occurred. Only one event gets
counted per packet. When maximum count is reached, the
16-bit counter remains full until cleared.
(Stretched)
(Stretched)
(Default) (Blink)
carrier sense.
3
3
3
3
2
2
2
(Blink)
4
Revision Date: 30-May-2006
Document Number: 249241
Type
Revision Number: 010
LH
R/
Type
R/W
R/W
R/W
R/W
1
1
Datasheet
Default
0x0000
Default
1110
00
1
0