Altera 40-Gbps Ethernet MAC and PHY MegaCore Function - Manual (Page 179)

Word
Addr
Bit R/W Name Description
• [4:0]: Selector
• [9:5]: Echoed nonce which are set by the state machine
• [12:10]: Pause bits
• [13]: Remote Fault bit
• [14]: ACK which is controlled by the SM
• [15]: Next page bit
Bit 49, the PRBS bit, is generated by the Auto-Negotiation TX
state machine.
21:16 RW
Override AN_
TECH[5:0]
Specifies an
AN_TECH
value to override. The following
encodings are defined:
• [16]:
AN_TECH[0]
= 1000Base-KX
• [17]:
AN_TECH[1]
= XAUI
• [18]:
AN_TECH[2]
= 10GBASE-KR
• [19]:
AN_TECH[3]
= 40G
• [20]:
AN_TECH[4]
= CR-4
• [21]:
AN_TECH[5]
= 100G
You must write 0xC0[5] to 1'b1 for these overrides to take
effect.
25:24 RW
Override AN_
FEC[1:0]
Specifies an
AN_FEC
value to override. The following
encodings are defined:
• [24]:
AN_ FEC [0]
= Capability
• [25]:
AN_ FEC [1]
= Request
You must write 0xC0[5] to 1'b1 for these overrides to take
effect.
30:28 RW
Override AN_
PAUSE[2:0]
Specifies an
AN_PAUSE
value to override. The following
encodings are defined:
• [28]:
AN_PAUSE[0]
= Pause Ability
• [29]:
AN_PAUSE[1]
= Asymmetric Direction
• [30]:
AN_PAUSE[2]
= Reserved
Need to set 0xC0 bit-5 to take effect.
0xC4 31:0 RW
User base page
high
The Auto-Negotiation TX state machine uses these bits if the
Auto-Negotiation base pages ctrl bit is set. The following bits
are defined:
• [4:0]: Correspond to bits 20:16 which are TX nonce bits.
• [29:5]: Correspond to page bit 45:21 which are the
technology ability.
Bit 49, the PRBS bit, is generated by the Auto-Negotiation TX
state machine.
C-6 10GBASE-KR PHY Register Definitions
UG-01088
2014.12.15
Altera Corporation 10GBASE-KR Registers
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