
• For PCS registers, map the registers to the dword offsets in the MAC register space before you convert
the dword offsets to byte offsets:
• if_mode word offset = 0x14
• if_mode dword offset = 0x80 + 0x14 = 0x94
• if_mode byte offset = 0x94 × 4 = 0x250
Table 6-12: PCS Configuration Registers
DescriptionR/WRegister NameWord
Offset
PCS control register. Use this register to control and
configure the PCS function. For the bit description, see
Control Register (Word Offset 0x00) on page 6-20.
RWcontrol0x00
Status register. Provides information on the operation of
the PCS function.
ROstatus0x01
32-bit PHY identification register. This register is set to the
value of the PHY ID parameter. Bits 31:16 are written to
word offset 0x02. Bits 15:0 are written to word offset 0x03.
RO
phy_identifier
0x02
0x03
Use this register to advertise the device abilities to a link
partner during auto-negotiation. In SGMII MAC mode, the
PHY does not use this register during auto-negotiation. For
the register bits description in 1000BASE-X and SGMII
mode, see 1000BASE-X on page 6-23 and SGMII PHY
Mode Auto Negotiation on page 6-25.
RWdev_ability0x04
Contains the device abilities advertised by the link partner
during auto-negotiation. For the register bits description in
1000BASE-X and SGMII mode, refer to 1000BASE-X on
page 6-23 and SGMII PHY Mode Auto Negotiation on
page 6-25, respectively.
ROpartner_ability0x05
Auto-negotiation expansion register. Contains the PCS
function capability and auto-negotiation status.
ROan_expansion0x06
The PCS function does not support these features. These
registers are always set to 0x0000 and any write access to
the registers is ignored.
RO
device_next_page0x07
partner_next_page0x08
master_slave_cntl0x09
master_slave_stat0x0A
——Reserved0x0B –
0x0E
The PCS function does not implement extended status
registers.
ROextended_status0x0F
Specific Extended Registers
Scratch register. Provides a memory location to test register
read and write operations.
RWscratch0x10
Altera Corporation
Configuration Register Space
Send Feedback
6-19
PCS Configuration Register Space
UG-01008
2014.06.30
Commentaires sur ces manuels