
Features and Registers
Slave Controller – IP Core for Xilinx FPGAs III-11
2 Features and Registers
2.1 Features
Table 7: IP Core Feature Details
Optional Bridge port 3
(EBUS or MII)
Physical Layer General
Features
FIFO Size configurable
(0x0100[18:16])
FIFO Size default from
SII EEPROM
Auto-Forwarder checks
CRC and SOF
Forwarded RX Error
indication, detection
and Counter
(0x0308:0x030B)
Lost Link Counter
(0x0310:0x0313)
Prevention of
circulating frames
Fallback: Port 0 opens
if all ports are closed
VLAN Tag and IP/UDP
support
Enhanced Link
Detection per port
configurable
General Ethernet Features
(MII/RMII/RGMII)
MII Management
Interface
(0x0510:0x051F)
Supported PHY
Address Offsets
Individual port PHY
addresses
Port PHY addresses
readable
Link Polarity
configurable
Enhanced Link
Detection supported
Link detection using
PHY signal (LED)
MI link status and
configuration
MI controllable by PDI
(0x0516:0x0517)
MI read error
(0x0510.13)
MI PHY configuration
update status
(0x0518.5)
Gigabit PHY
configuration
Gigabit PHY register 9
relaxed check
CLK25OUT as PHY
clock source
Bootstrap TX Shift
settings
Automatic TX Shift
setting (with TX_CLK)
TX Shift not necessary
(PHY TX_CLK as clock
source)
FIFO size reduction
steps
Increased PDI
performance
Extended PDI
Configuration
(0x0152:0x0153)
PDI Error Counter
(0x030D)
CPU_CLK output (10,
20, 25 MHz)
SOF, EOF, WD_TRIG
and WD_STATE
independent of PDI
Available PDIs and PDI
features depending on
port configuration
PDI selection at run-
time (SII EEPROM)
PDI active immediately
(SII EEPROM settings
ignored)
PDI function
acknowledge by write
PDI Information
register
0x014E:0x014F
PDI Control register
value (0x0140:0x0141)
Granularity of direction
configuration [bits]
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