Intel PCI User Manual

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Software Developer’s Manual
347
Register Descriptions
Table 13-113. PRC64 Register Bit Description
13.7.22
Packets Received (65-127 Bytes) Count
PRC127 (04060h; R)
This register counts the number of good packets received that are 65-127 bytes (from <Destination 
Address> through <CRC>, inclusively) in length. Packets that are counted in the Missed Packet 
Count register are not counted in this register. This register does not include received flow control 
packets and increments only if receives are enabled.
Table 13-114. PRC127 Register Bit Description
13.7.23
Packets Received (128-255 Bytes) Count
PRC255 (04064h; R)
This register counts the number of good packets received that are 128-255 bytes (from 
<Destination Address> through <CRC>, inclusively) in length. Packets that are counted in the 
Missed Packet Count register are not counted in this register. This register does not include 
received flow control packets and increments only if receives are enabled.
31
0
PRC64
Field
Bit(s)
Initial 
Value
Description
PRC64
31:0
0b
Number of packets received that are 64 bytes in length.
31
0
PRC127
Field
Bit(s)
Initial 
Value
Description
PRC127
31:0
0b
Number of packets received that are 65-127 bytes in length.