WG82574L S LBA9 Intel, WG82574L S LBA9 Datasheet - Page 318

• Manufacturer Part Number: WG82574L S LBA9
• Description: CONTROLLER, ENET, INTEL 82574L, 64PQFN
• Manufacturer: Intel

Specifications of WG82574L S LBA9

• Ethernet Type: IEEE 802.3, IEEE 802.3u, IEEE 802.3ab
• Supply Voltage Range: 3V To 3.6V
• Operating Temperature Range: 0°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 64
• Package / Case: QFN
• Interface Type: I2C, JTAG, PCI, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

318
Transaction layer stalls transmitting due
to lack of flow control credits of the next
part.
Retransmitted packets.
Stall due to retry buffer full
Retry buffer is under threshold
Posted Request Header (PRH) flow
control credits (of the next part) below
threshold
Posted Request Data (PRD) flow control
credits (of the next part) below
threshold
Non-Posted Request Header (NPRH)
flow control credits (of the next part)
below threshold
Completion Header (CPLH) flow control
credits (of the next part) below
threshold
Completion Data (CPLD) flow control
credits (of the next part) below
threshold
Posted Request Header (PRH) flow
control credits (of local part) get to
zero.
Non-Posted Request Header (NPRH)
flow control credits (of local part) get to
zero.
Posted Request Data (PRD) flow control
credits (of local part) get to zero.
Non-Posted Request Data (NPRD) flow
control credits (of local part) get to
zero.
Dwords of TLP received, include payload
and header.
Messages packets received
Received packets to func_logic.
Transaction layer Events
27
28
29
2A
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
Mapping
(Hex)
Event
82574 GbE Controller—Driver Programing Interface
The counter counts the number of times the
transaction layer stops transmitting because of this
(per packet).
Counted: completion, memory, message.
The counter increases for each re-transmitted
packet.
Counted: completion, memory, message.
The counter counts the number of times transaction
layer stops transmitting because the retry buffer is
full (per packet).
Counted: completion, memory, message.
Threshold specified by software, Retry buffer is under
threshold per packet.
Counted: completion, memory, message.
Threshold specified by software.
The counter increases each time the number of the
specific flow control credits is lower than the
threshold.
Counted: According to credit type.
Threshold specified by software.
The counter increases each time the number of the
specific flow control credits reaches the value of zero.
(The period that the credit is zero is not counted).
Counted: According to credit type.
Each 125 MHz cycle the counter increases by 1 (1
Dword) or 2 (2 Dwords).
Counted: completion, memory, message, I/O, config.
Each 125 MHz cycle the counter increases by 1.
Counted: messages (only good).
Each 125 MHz cycle the counter increases by 1.
Counted: memory, I/O, config (only good).
Description