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Do you have any further reading to provide about what all the T2 was doing in those Macs? I too have long suspected that the T2 was Apple playing with transitio
by whynotminot 3y ago
Do you have any further reading to provide about what all the T2 was doing in those Macs? I too have long suspected that the T2 was Apple playing with transition right in front of us, but would love a more comprehensive look at what all that chip was doing.
I know it was providing the Secure Enclave, some hardware encode/decode media blocks, and I think FileVault for the SSD. But would be curious to know if it was even more than that.
- dwaite 3y agosecure storage/secure boot while acting as the SSD controller, crypto functions via the Secure Enclave with TouchID processing. Video codec for encoding/decoding H.264/H.265. Also handled the hardware for the microphone/speakers, camera, light sensors so that these would be isolated from the main OS. It handled Hey Siri voice command recognition. It also had independent power/sleep levels from the rest of the system, and handled power/thermal management from what I understand. Probably because it didn't operate as the NIC, they didn't move system/application background tasks like watching for push notifications or checking email.
- zaptrem 3y agoDidn’t it also power the Touch Bar which was technically a whole separate computer? I remember people booting other OSes on it.
- philistine 3y agoYup. It did. To me the transition happened in front of our eyes because the T2 chip was Apple stopping development of new hardware features on Intel. All that came to T2 could have been done on Intel but Apple was already committed to the switch so they started the work early and made it so they didn’t have to do it twice.