Altera Triple Speed Ethernet MegaCore Function User Manual
Page 102
• 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
Description
R/W
Register Name
Word
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.
RW
control
0x00
Status register. Provides information on the operation of
the PCS function.
RO
status
0x01
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
on page 6-23 and
on page 6-25.
RW
dev_ability
0x04
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
on
page 6-23 and
SGMII PHY Mode Auto Negotiation
on
page 6-25, respectively.
RO
partner_ability
0x05
Auto-negotiation expansion register. Contains the PCS
function capability and auto-negotiation status.
RO
an_expansion
0x06
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_page
0x07
partner_next_page
0x08
master_slave_cntl
0x09
master_slave_stat
0x0A
—
—
Reserved
0x0B –
0x0E
The PCS function does not implement extended status
registers.
RO
extended_status
0x0F
Specific Extended Registers
Scratch register. Provides a memory location to test register
read and write operations.
RW
scratch
0x10
Altera Corporation
Configuration Register Space
6-19
PCS Configuration Register Space
UG-01008
2014.06.30