Altera Low Latency 40-Gbps Ethernet MAC and PHY MegaCore Function User Manual
Page 142
Address
Name-
Description
Access
0x836
CNTR_TX_ST_LO
Number of transmitted frame starts (lower 32 bits)
RO
0x837
CNTR_TX_ST_HI
Number of transmitted frame starts (upper 32 bits)
RO
0x838–
0x83F
Reserved
0x840
TXSTAT_REVID
TX statistics module revision ID.
RO
0x841
TXSTAT_SCRATCH
Scratch register available for testing. Default value is 0x08.
RW
0x842
TXSTAT_NAME_0
First 4 characters of IP core variation identifier string
"040gMacStats" or "100gMacStats"
RO
0x843
TXSTAT_NAME_1
Next 4 characters of IP core variation identifier string
"040gMacStats" or "100gMacStats"
RO
0x844
TXSTAT_NAME_2
Final 4 characters of IP core variation identifier string
"040gMacStats" or "100gMacStats"
RO
0x845
CNTR_TX_CONFIG
Bits [2:0]: Configuration of TX statistics counters:
• Bit [2]: Shadow request (active high): When set to the
value of 1, TX statistics collection is paused. The
underlying counters continue to operate, but the
readable values reflect a snapshot at the time the pause
flag was activated. Write a 0 to release.
• Bit [1]: Parity-error clear. When software sets this bit,
the IP core clears the parity bit
CNTR_TX_STATUS[0]
.
This bit (
CNTR_TX_CONFIG[1]
) is self-clearing.
• Bit [0]: Software can set this bit to the value of 1 to reset
all of the TX statistics registers at the same time. This bit
is self-clearing.
Bits [31:3] are Reserved.
RW
0x846
CNTR_TX_STATUS
• Bit [1]: Indicates that the TX statistics registers are
paused (while
CNTR_TX_CONFIG[2]
is asserted) .
• Bit [0]: Indicates the presence of at least one parity error
in the TX statistics counters.
Bits [31:2] are Reserved.
RO
0x860
TxOctetsOK_LO
Number of transmitted payload bytes in frames with no
FCS, undersized, oversized, or payload length errors. This
register is compliant with section 5.2.2.18 of the IEEE
Standard 802.3-2008.
Instead of an increment vector, this register corresponds to
the signals
tx_inc_octetsOK[15:0]
and
tx_inc_
octetsOK_valid
.
RO
0x861
TxOctetsOK_HI
RO
UG-01172
2015.05.04
TX Statistics Registers
3-97
Functional Description
Altera Corporation