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Software Developer’s Manual 355
Register Descriptions
Table 13-121. MPRC Register Bit Description
13.7.30 Good Packets Transmitted Count
GPTC (04080h; R)
This register counts the number of good (no errors) packets transmitted. A good transmit packet is
considered one that is 64 or more bytes in length (from <Destination Address> through <CRC>,
inclusively) in length. This does not include transmitted flow control packets. This register only
increments if transmits are enabled.
Table 13-122. GPTC Register Bit Description
13.7.31 Good Octets Received Count
GORCL (04088h; R)/GORCH (0408Ch; R)
These registers make up a 64-bit register that counts the number of good (no errors) octets
received. This register includes bytes received in a packet from the <Destination Address> field
through the <CRC> field, inclusively. This register resets each time the upper 32 bits are read
(GORCH).
In addition, it sticks at FFFFh_FFFFh_FFFFh_FFFFh when the maximum value is reached. Only
octets of packets that pass address filtering are counted in this register. This register only
increments if receives are enabled.
These octets do not include octets of received flow control packets.
31 0
MPRC
Field Bit(s)
Initial
Value
Description
MPRC 31:0 0b Number of multicast packets received.
31 0
GPTC
Field Bit(s)
Initial
Value
Description
GPTC 31:0 0b Number of good packets transmitted.