Intel Gigabit Ethernet Controllers ユーザーズマニュアル

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Software Developer’s Manual
Register Descriptions
13.7.47
Packets Transmitted (128-255 Bytes) Count
PTC255 (040E0h; R)
This register counts the number of packets transmitted that are 128-255 bytes (from <Destination 
Address> through <CRC>, inclusively) in length. Partial packet transmissions (collisions in half-
duplex mode) are not included in this register. This register only increments if transmits are 
enabled. This register counts all packets, including standard packets, secure packets, packets 
received over the SMBus, and packets generated by the ASF function.
Table 13-136. PTC255 Register Bit Description
13.7.48
Packets Transmitted (256-511 Bytes) Count
PTC511 (040E4h; R)
This register counts the number of packets transmitted that are 256-511 bytes (from <Destination 
Address> through <CRC>, inclusively) in length. Partial packet transmissions (collisions in half-
duplex mode) are not included in this register. This register only increments if transmits are 
enabled. This register counts all packets, including standard packets, secure packets, packets 
received over the SMBus
1
, and packets generated by the ASF function.
Table 13-137. PTC511 Register Bit Description
31
0
PTC255
Field
Bit(s)
Initial 
Value
Description
PTC255
31:0
0b
Number of packets transmitted that are 128-255 bytes in 
length.
1.
The 82544GC/EI does not support SMBus or ASF functionality.
31
0
PTC511
Field
Bit(s)
Initial 
Value
Description
PTC511
31:0
0b
Number of packets transmitted that are 256-511 bytes in 
length.