Register Descriptions

All packets received have their octets summed into this register, regardless of their length, whether they are erred, or whether they are flow control packets. This register includes bytes received in a packet from the <Destination Address> field through the <CRC> field, inclusively. This register only increments if receives are enabled.

Table 13-130. TORL and TORH Register Bit Descriptions

31

0

TORH

31

0

TORL

Field

Bit(s)

Initial

Description

Value

 

 

 

 

 

 

 

TORL

31:0

0b

Number of total octets received – lower 4 bytes.

 

 

 

 

TORH

31:0

0b

Number of total octets received – upper 4 bytes.

 

 

 

 

13.7.42Total Octets Transmitted

TOTL (040C8h; R/W / TOTH (040CCh; R)

These registers make up a 64-bit register that counts the total number of octets transmitted. This register resets each time the upper 32 bits are read (TOTH). In addition, it sticks at FFFF_FFFF_FFFF_FFFFh when the maximum value is reached.

All transmitted packets have their octets summed into this register, regardless of their length or whether they are flow control packets. This register includes bytes transmitted in a packet from the <Destination Address> field through the <CRC> field, inclusively.

Octets transmitted as part of partial packet transmissions (collisions in half-duplex mode) are not included in this register. This register only increments if transmits are enabled.

Table 13-131. TOTL and TOTH Register Bit Descriptions

31

0

TOTH

31

0

TOTL

Field

Bit(s)

Initial

Description

Value

 

 

 

 

 

 

 

TOTL

31:0

0b

Number of total octets transmitted – lower 4 bytes.

 

 

 

 

TOTH

31:0

0b

Number of total octets transmitted – upper 4 bytes.

 

 

 

 

Software Developer’s Manual

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Intel Intel Gigabit Ethernet Controllers, PCI-X manual Total Octets Transmitted, Totl 040C8h R/W / Toth 040CCh R