Altera UG-01080 Betriebsanweisung Seite 73

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Chapter 4: Backplane Ethernet 10GBASE-KR PHY IP Core 4–25
Register Interface and Register Descriptions
November 2012 Altera CorporationAltera Transceiver PHY IP Core
User Guide
0xCA 31:0 RO LP Next page high
The AN RX state machine receives these bits from the link
partner.
Bits [31:0] correspond to page bits [47:16]
0xCB 24:0 RO
AN LP ADV Tech_A[24:0]
Received technology ability field bits of Clause 73
Auto-Negotiation. The 10GBASE-KR PHY supports A2.
The following protocols are defined:
A0 1000BASE-KX
A1 10GBASE-KX4
A2 10GBASE-KR
A3 40GBASE-KR4
A4 40GBASE-CR4
A5 100GBASE-CR10
A24:6 are reserved
For more information, refer to Clause 73.6.4 and bits
7.19–7.21 of Clause 45 of IEEE 802.3ap-2007.
0xCB 27 RO
AN LP ADV Remote Fault
Received Remote Fault (RF) ability bits. RF is encoded in
bit D13 of the base link codeword in Clause 73 AN.
For more information, refer to Clause 73.6.7 and bits
7.19–7.21 of Clause 45 of IEEE 802.3ap-2007.
0xCB 30:28 RO
AN LP ADV Pause
Ability_C[2:0]
Received pause ability bits. Pause (C0:C1) is encoded in
bits D11:D10 of the base link codeword in Clause 73 AN as
follows:
C0 is the same as PAUSE as defined in Annex 28B.
C1 is the same as ASM_DIR as defined in Annex 28B.
C2 is reserved
For more information, refer to bits 7.19–7.21 of Clause 45
of IEEE 802.3ap-2007.
0xD0
0RW
Link Training enable
When 1, enables the 10GBASE-KR start-up protocol.
When 0, disables the 10GBASE-KR start-up protocol. The
default value is 1.
For more information refer to Clause 72.6.10.3.1 and bit
150.1 of IEEE 802.3ap-2007.
1RW
dis_max_wait_tmr
When set to 1, disables the LT
max_wait_timer
. Used for
characterization mode when setting much longer BER
timer values.
2RW
quick_mode
When set to 1, only the
init
and
preset
values are used
to calculate the best BER.
3RW
pass_one
When set to 1, the BER algorithm considers more than the
first local minimum when searching for the lowest BER.
The default value is 1.
7:4 RW
main_step_cnt[3:0]
Specifies the number of equalization steps for each main
tap update. There are about 20 settings for the internal
algorithm to test. The valid range is 1–15. The default
value is 4’b0010.
Table 4–18. 10GBASE-KR Register Definitions (Part 6 of 12)
Word
Address
Bit R/W Name Description
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1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 483 484

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