Altera 40-Gbps Ethernet MAC and PHY MegaCore Function Manuel d'utilisateur Page 179

  • Télécharger
  • Ajouter à mon manuel
  • Imprimer
  • Page
    / 199
  • Table des matières
  • MARQUE LIVRES
  • Noté. / 5. Basé sur avis des utilisateurs
Vue de la page 178
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
Send Feedback
Vue de la page 178
1 2 ... 174 175 176 177 178 179 180 181 182 183 184 ... 198 199

Commentaires sur ces manuels

Pas de commentaire