CMAC with GTM Mapping - 3.1 English

UltraScale+ Devices Integrated 100G Ethernet Subsystem Product Guide (PG203)

Document ID
PG203
Release Date
2023-11-01
Version
3.1 English

The mapping between the 100G Ethernet IP with high speed GTM transceiver along with the clocking and reset modules are depicted in This Figure and This Figure.

Figure 3-3:      CMAC Clock and Reset – 100GAUI-2 GTM with Transcode Configuration

X-Ref Target - Figure 3-3

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Figure 3-4:      CMAC Clock and Reset – CAUI-4 GTM Configuration

X-Ref Target - Figure 3-4

X21780-caui4-gtm.jpg

 

 

Figure 3-5:      CMAC Clock and Reset – 100GAUI-4 GTM Configuration

X-Ref Target - Figure 3-5

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The supported GTM configurations for CMAC is shown in Table: Supported CMAC-GTM configurations.

Table 3-1:      Supported CMAC-GTM configurations

Configuration

GTM Presets Used

Line Rate

(Gb/s)

GTM Data Encoding

GTM Data Width

100GAUI-2

GTM-PAM4_100GAUI_2

53.125

PAM4

160

CAUI-4

GTM-NRZ_CAUI_4

25.78125

NRZ

64

100GAUI-4

GTM-NRZ_100GAUI_4

26.5625

NRZ

64