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A Queued Serial Peripheral Interface (QSPI; different to but has same abbreviation as Quad SPI described in § Quad SPI) is a type of SPI controller that uses a data queue to transfer data across an SPI bus. [19] It has a wrap-around mode allowing continuous transfers to and from the queue with only intermittent attention from the CPU.
iPhone and iPod Touch models released between 2007 and 2009 used system on a chip (SoC) circuits designed by Samsung and manufactured to Apple's specifications. Two such SoCs were used: the Samsung S5L8900, used in the first-generation iPhone, the iPhone 3G, and the first-generation iPod Touch, [1] and the Samsung S5L8920, used in the iPhone 3GS and the third-generation iPod Touch. [2]
IEEE 1394 is an interface standard for a serial bus for high-speed communications and isochronous real-time data transfer. It was developed in the late 1980s and early 1990s by Apple in cooperation with a number of companies, primarily Sony and Panasonic.
Apple offers various adapters that allow the Lightning connector to be used with other interfaces, such as 30-pin, USB, HDMI, VGA, and SD cards. The Lightning to 30-pin adapter supports only a limited subset of the available 30-pin signals: USB data, USB charging, and analog audio output (via the DAC inside of the adapter [27]).
The headphone socket on the first-generation iPhone is recessed into the casing, making it incompatible with most headsets without the use of an adapter. [25] The iPhone 7 and later have no 3.5 mm headphone jack, [26] and instead headsets must connect to the iPhone by Bluetooth, use Apple's Lightning connector, or (for traditional headsets) use ...
Parallel SCSI (formally, SCSI Parallel Interface, or SPI) is the earliest of the interface implementations in the SCSI family. SPI is a parallel bus ; there is one set of electrical connections stretching from one end of the SCSI bus to the other.
The Apple A10 Fusion is a 64-bit ARM-based system on a chip (SoC) designed by Apple Inc., part of the Apple silicon series, and manufactured by TSMC.It first appeared in the iPhone 7 and 7 Plus which were introduced on September 7, 2016, [5] [6] and is used in the sixth generation iPad, seventh generation iPad, and seventh generation iPod Touch.
The Peripheral Interface Adapter had a slight change in the electrical characteristics of the I/O pins so the MC6820 became the MC6821. [ 1 ] The MC6820 was used in the Apple I to interface the ASCII keyboard and the display. [ 2 ]
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