DS537 Datasheet, PDF (55/148 Pages) Xilinx, Inc – LogiCORE IP XPS LL TEMAC

LogiCORE IP XPS LL TEMAC (v2.03a)
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X-Ref Target - Figure 33
GPCS
RGMII
TX16
31 30 29 28 27 26 25 24
Link _SGMII
RX16
Speed
HOST
Reserved
DS537_33_091909
Figure 33: TEMAC Ethernet MAC Mode Configuration Registers (ADDRESS_CODE 0x300)
Table 32 shows the TEMAC Ethernet MAC Mode Configuration Registers bit definitions.
Table 32: TEMAC Ethernet MAC Mode Configuration Registers Bit Definitions
Bit(s)
Name
Core Access
Reset
Value
Description
Read/Write⁽¹⁾
31 - 30 Link Speed
10 / 01⁽²⁾
Link Speed Selection. The speed of the Ethernet interface is defined
by the following values.
10 - 1000 Mb/S
01 - 100 Mb/S
00 - 10 Mb/s
11 - N/A
Read
29
RGMII
Read/Write⁽¹⁾
RGMII Mode Enable. When this bit is "1", the Ethernet interface is
configured in RGMII mode.
0
0 - not configured in RGMII mode
1 - configured in RGMII mode
Read
28
SGMII
Read/Write⁽¹⁾
SGMII Mode Enable. When this bit is "1", the Ethernet interface is
configured in SGMII mode.
0
0 - not configured in SGMII mode
1 - configured in SGMII mode
Read
27
GPCS
Read/Write⁽¹⁾
1000BASE-X Mode Enable. When this bit is "1", the Ethernet interface
is configured in 1000BASE-X mode.
0
0 - not configured in 1000BASE-X mode
1 - configured in 1000BASE-X mode
Read
Host Interface Enable. When this bit is "1", the host interface is
26
HOST
Read/Write⁽¹⁾
1 / 0⁽³⁾
enabled.
0 - host interface disabled
1 - host interface is enabled
Read
Read/Write⁽¹⁾
25
TX16
Transmit 16-bit Data Interface Enable. When this bit is "1" and
1000BASE-X is being used, the transmit data interface is 16-bits wide.
When this bit is "0", the transmit data interface is 8-bits wide. The 16-bit
0
interface is not supported so this bit should always return "0".
0 - 8-bit transmit data interface
1 - 16-bit transmit data interface
Read
Read/Write⁽¹⁾
24
RX16
Receive 16-bit Data Interface Enable. When this bit is "1" and
1000BASE-X is being used, the receive data interface is 16-bits wide.
When this bit is "0", the receive data interface is 8-bits wide. The 16-bit
0
interface is not supported so this bit should always return "0".
0 - 8-bit receive data interface
1 - 16-bit receive data interface
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