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Is PDIUSBD12 compliant to USB Specification 1.0 or the 1.1?

April 26, 2017compliant pdiusbd12 specification USB

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Is PDIUSBD12 compliant to USB Specification 1.0 or the 1.1?

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USB Spec 1.1 was released on September 23, 1998. As expected, USB 1.1 only clarifies USB Spec 1.0. Much information on the timing on the protocol layer has been included. This may impact the firmware on the microcontroller. However, this does not affect the compliance of D12 to the 1.1 Specification. All the physical layer specifications have been rechecked to ensure compatibility to the USB Spec 1.1. ( The USB Specification 1.1 (Draft) was released on 28 July 98 and the USB Specification 1.1 was released on September 23, 1998. PDIUSBD12 is only used as the physical layer (Chapter 7) and basic protocol layer (Chapter 8.1 through Chapter 8.4.5) interface. It is compliant to both the USB 1.0 and 1.1 specifications. The handshake responses are handled through the microcontroller. This allows PDIUSBD12 to be upward compatible with changes to Chapter 8.4.5 through Chapter 9. ) 2.