OPEN Alliance TC6 Protocolos suportados

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OPEN Alliance TC6 10BASE-T1S MAC-PHY

O que é OPEN Alliance TC6?

OPEN Alliance TC6 defines the SPI-based interface between a host controller and a 10BASE-T1S MAC-PHY device. Instead of implementing the Ethernet MAC in the host, TC6 MAC-PHY devices integrate both MAC and PHY functions, exposing a simple SPI interface for the host to send and receive Ethernet frames. The TC6 protocol defines the SPI frame format, header structure, data chunk transfer, and control commands for configuration, status polling, and frame transfer. Engineers developing automotive Ethernet nodes using TC6 MAC-PHY chips need to debug the SPI-level communication to verify frame transfer, configuration register access, and interrupt handling between the host microcontroller and the MAC-PHY device.

OPEN Alliance TC6 Referência rápida

type SPI-based MAC-PHY interface
signals SPI + interrupt
max Speed 10 Mbps Ethernet via SPI
standard OPEN Alliance TC6

Instrumentos Acute compatíveis com OPEN Alliance TC6

Soluções recomendadas

Recomendado para decodificação

TB3016F

TB3016F

Com canais analógicos

MSO2116E

MSO2116E

Todos os produtos compatíveis

Pronto para analisar este protocolo?

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Como analisar OPEN Alliance TC6 com instrumentos Acute

1

Conecte seu analisador lógico Acute a interface SPI entre o controlador host e o MAC-PHY TC6: CLK, CS#, MOSI, MISO e opcionalmente a linha de interrupção.

2

Conecte um fio terra a referência de terra da placa alvo.

3

No software Acute, selecione o OPEN Alliance TC6 protocol decoder e atribua cada sinal SPI ao canal de entrada correspondente.

4

Configure o modo SPI e o tamanho de bloco TC6 correspondente a sua configuração MAC-PHY.

5

Capture e visualize os TC6 transactions showing data headers, control commands, Ethernet frame payloads, and status information.

Perguntas frequentes

Qual taxa de amostragem e necessária para a análise TC6 ?
TC6 uses a standard SPI interface, typically running at 15-30 MHz. Sample at a minimum of 4x the SPI clock frequency. For a 25 MHz SPI clock, use at least 100 MHz sampling. Higher sample rates provide better timing margin for decoding the SPI data and the TC6 header/footer fields within each SPI transaction.
Por que meu driver host TC6 não recebe quadros Ethernet do MAC-PHY?
TC6 frame reception requires the host to poll the MAC-PHY by initiating SPI transactions. If the host is not polling frequently enough or is not reading the data valid flag in the TC6 footer, received frames may be dropped. Capture the SPI bus to verify that the host is sending sufficient read transactions and that the TC6 footer fields indicate data is available. Also check that the MAC-PHY's interrupt output is correctly wired and handled, as it signals when received frames are pending.
Quantos canais são necessários para a análise de TC6 ?
TC6 SPI analysis requires 4 channels: CLK, CS#, MOSI, and MISO. Adding the interrupt line (INT#) from the MAC-PHY to the host brings the total to 5 channels. If you also need to monitor the RESET# line or a GPIO used for MAC-PHY configuration, add 1-2 more channels. Most TC6 debugging requires 4-5 channels.

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