TLK110 Datasheet, PDF (72/104 Pages) Texas Instruments – Industrial Temp, Single Port 10/100Mbs Ethernet Physical Layer

TLK110
SLLS901A – DECEMBER 2011 – REVISED FEBRUARY 2012
www.ti.com
8.3.12 BIST Control and Status Register 1 (BICSR1)
This register provides the total number of error bytes that was received by the PRBS checker and defines
the Inter packet Gap (IPG) for the packet generator.
Table 8-29. BIST Control and Status Register 1 (BICSR1), address 0x001B
BIT BIT NAME
15:8 BIST Error
Count
7:0 BIST IPG
Length
DEFAULT
0, RO
<0111 1101>,
RW
DESCRIPTION
BIST Error Count:
Holds number of erroneous bytes that were received by the PRBS checker. Value in this
register is locked when write is done to bit[0] or bit[1] (see below).
When PRBS Count Mode set to zero, count stops on 0xFF. See BISCR register (0x0016) for
further details
Note: Writing “1” to bit 15 will lock counter’s value for successive read operation and clear the
BIST Error Counter.
BIST IPG Length:
Inter Packet Gap (IPG) Length defines the size of the gap (in bytes) between any 2 successive
packets generated by the BIST. Default value is 0x7D which is equal to 125 bytes
8.3.13 BIST Control and Status Register2 (BICSR2)
This register allows programming the length of the generated packets in bytes for the BIST mechanism.
Table 8-30. BIST Control and Status Register 2 (BICSR2), address 0x001C
BIT
BIT NAME
15:11 RESERVED
10:0 BIST Packet
Length
DEFAULT
<0000 0>,
RO
0X5DC,RW
DESCRIPTION
RESERVED: Writes ignored, read as 0.
BIST Packet Length:
Length of the generated BIST packets. The value of this register defines the size (in bytes) of
every packet that generated by the BIST. Default value is 0x5DC which is equal to 1500 bytes
8.4 Cable Diagnostic Registers
8.4.1 Cable Diagnostic Control Register (CDCR)
This register provides ability to the system to reset or restart the PHY by register access.
Table 8-31. Cable Diagnostic Control Register (CDCR), address 0x001E
BIT NAME
DEFAULT
15 Diagnostic Start 0,RW
14:10 RESERVED
9:8 Link Quality
<000
00>,RO
<<00>,RO
7:4 RESERVED
0,RO
3:2 RESERVED
00>,RO
1 Diagnostic Done 0,RO
0 Diagnostic Fail 0,RO
FUNCTION
Cable Diagnostic Process Start:
1 = Start execute cable measurement
0 = Cable Diagnostic is disabled
Diagnostic Start bit is cleared with raise of Diagnostic Done indication.
RESERVED: Writes ignored, read as 0.
Link Quality Indication
<00> = Reserved
<01> = Good Quality Link Indication
<10> = Mid Quality Link Indication
<11> = Poor Quality Link Indication
The value of these bits are valid only when link is active – While reading “1” from “Link Status” bit
0 on PHYSTS register (0x0010).
RESERVED: Writes ignored, read as 0.
RESERVED: Writes ignored, read as 0.
Cable Diagnostic Process Done:
1 = Indication that cable measurement process completed
0 = Diagnostic has not completed
Cable Diagnostic Process Fail:
1 = Indication that cable measurement process failed
0 = Diagnostic has not failed
72
Register Block
Submit Documentation Feedback
Product Folder Link(s): TLK110
Copyright © 2011–2012, Texas Instruments Incorporated