Physical Medium Attachment (PMA)

The PMA is a crucial sublayer within the Ethernet PHY that bridges the upper logical layers with the physical medium. It acts as an electrical and timing adapter, ensuring data is properly serialized, synchronized, and formatted before being sent across copper or fiber optic cables.

Precoding

• PP_PRECODING
• PP_PRECODINGSTATUS

Gray-Coding

• PP_GRAYCODING

Polarity Swap

• PL1_PNSWAP_RX
• PL1_PNSWAP_TX

Pattern Generation and Checking

• PP_PRBSTYPE
• PP_RXPRBSSTATUS
• PP_RXPRBSTYPE
• PP_TXPRBSCONFIG
• PP_TXPRBSTYPE

Symbol Multiplexing

• PL1_PMA_MUX

Error Injection

• PP_PMAERRPUL_ENABLE
• PP_PMAERRPUL_PARAMS