Altera cyclone V Technical Reference page 1353

17-138
MAC_Configuration
31 30
Reserved
15 14
ps fes
RW 0x0 RW
0x0
MAC_Configuration Fields
Bit
27
twokpe
25
cst
24
tc
Altera Corporation
29 28 27 26
twokp Reser
e ved
RW
0x0
13 12 11 10
do lm dm ipc
RW RW RW RW
0x0 0x0 0x0 0x0
Name
When set, the MAC considers all frames, with up to
2,000 bytes length, as normal packets. When Bit 20
(Jumbo Enable) is not set, the MAC considers all
received frames of size more than 2K bytes as Giant
frames. When this bit is reset and Bit 20 (Jumbo
Enable) is not set, the MAC considers all received
frames of size more than 1,518 bytes (1,522 bytes for
tagged) as Giant frames. When Bit 20 (Jumbo Enable)
is set, setting this bit has no effect on Giant Frame
status.
When set, the last 4 bytes (FCS) of all frames of Ether
type (type field greater than 0x0600) are stripped and
dropped before forwarding the frame to the applica‐
tion. This function is not valid when the IP Checksum
Engine (Type 1) is enabled in the MAC receiver.
Value
0x0
0x1
When set, this bit enables the transmission of duplex
mode, link speed, and link up or down information to
the PHY in the RGMII. When this bit is reset, no such
information is driven to the PHY.
Value
0x1
0x0
Bit Fields
25 24 23 22
cst tc wd jd
RW RW RW RW
0x0 0x0 0x0 0x0
9 8 7 6
dr lud acs bl
RW RW RW RW 0x0
0x0 0x0 0x0
Description
Description
Strip Ether Frames Off
Strip Ether Frames On
Description
Enables Transmission of duplex
Disables Transmission to Phy
21 20 19 18
be je ifg
RW RW RW 0x0
0x0 0x0
5 4 3 2
dc te re
RW RW RW
0x0 0x0 0x0
Access
Ethernet Media Access Controller
cv_5v4
2016.10.28
17 16
dcrs
RW 0x0
1 0
prelen
RW 0x0
Reset
RW 0x0
RW 0x0
RW 0x0
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