Table of Contents
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Schedule of Figures
Chapter 1: Introduction
Chapter 2: Core Architecture
Figure 2-1: Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Figure 2-3: Component Pinout for MAC without Optional Management Interface
and with Optional Address Filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 2-4: Component Pinout for MAC without Optional Management Interface or
Optional Address Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Chapter 3: Generating the Core
Figure 3-1: 1-Gigabit Ethernet MAC Main Screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Chapter 4: Designing with the Core
Figure 4-1: 1-Gigabit Ethernet MAC Core Example Design . . . . . . . . . . . . . . . . . . . . . . . . 36
Chapter 5: Using the Client Side Data Path
Figure 5-1: Normal Frame Reception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Figure 5-2: Frame Reception with Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Figure 5-3: Frame Reception with In-Band FCS Field. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 5-4: Reception of a VLAN Tagged Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Figure 5-5: Receiver Statistics Vector Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Figure 5-6: Normal Frame Transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Figure 5-7: Frame Transmission with Client-supplied FCS. . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 5-8: Frame Transmission with Underrun . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Figure 5-9: Transmission of a VLAN Tagged Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
Figure 5-10: Inter-Frame Gap Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Figure 5-11: Transmitter Statistic Vector Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Chapter 6: Using Flow Control
Figure 6-1: Requirement for Flow Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Figure 6-2: MAC Control Frame Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Figure 6-3: Pause Request Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Figure 6-4: Flow Control Implementation Triggered from FIFO Occupancy. . . . . . . . . . 59
1-Gigabit Ethernet MAC v8.5 User Guide
UG144 April 24, 2009
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