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Software Developer’s Manual 363
Register Descriptions
13.7.45 Packets Transmitted (64 Bytes) Count
PTC64 (040D8h; R)
This register counts the number of packets transmitted that are exactly 64 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 does not include transmitted flow
control packets (which are 64 bytes in length). 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 13-134. PTC64 Register Bit Description
13.7.46 Packets Transmitted (65-127 Bytes) Count
PTC127 (040DCh; R)
This register counts the number of packets transmitted that are 65-127 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 13-135. PTC127 Register Bit Description
31 0
PTC64
Field Bit(s)
Initial
Value
Description
PTC64 31:0 0b Number of packets transmitted that are 64 bytes in length.
1. The 82544GC/EI does not support SMBus or ASF functionality.
31 0
PTC127
Field Bit(s)
Initial
Value
Description
PTC127 31:0 0b Number of packets transmitted that are 65-127 bytes in length.