type c assignments

computer bus pin assignment

Usb-c (type-c) pins and signals.

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USB type-c details

Developed at roughly the same time as the USB 3.1 specification, but distinct from it, the USB Type-C Specification 1.0 defines a new small reversible-plug connector for USB devices. The Type-C plug connects to both hosts and devices, replacing various Type-B and Type-A connectors and cables with a standard meant to be future-proof, similar to  Apple Lightning and Thunderbolt . The 24-pin double-sided connector provides four power/ground pairs, two differential pairs for USB 2.0 data bus (though only one pair is implemented in a Type-C cable), four pairs for high-speed data bus, two sideband use pins, and two configuration pins for cable orientation detection, dedicated biphase mark code (BMC) configuration data channel, and VCONN +5 V power for active cables. Type-A and Type-B adaptors and cables will be required for older devices in order to plug into Type-C hosts; adaptors and cables with a Type-C receptacle are not allowed.

USB type-C pinout

Pins A2,A3,A10,A11,B2,B3,B10,B11 are not used with USB 2.0-only devices.

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See also USB type C full-featured cable.

• USB-C (type-C) full-featured cable pinout
• USB-C (Type-C) to USB-A charge/data cable pinout
• USB-C to micro-USB 2.0 cable pinout
• USB-C to USB 3.2 cable pinout
• How to replace microUSB with USB-C

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Next: Argument Promotions , Previous: Explicit Type Conversion , Up: Type Conversions   [ Contents ][ Index ]

24.2 Assignment Type Conversions

Certain type conversions occur automatically in assignments and certain other contexts. These are the conversions assignments can do:

• Converting any numeric type to any other numeric type.
• Converting void * to any other pointer type (except pointer-to-function types).
• Converting any other pointer type to void * . (except pointer-to-function types).
• Converting 0 (a null pointer constant) to any pointer type.
• Converting any pointer type to bool . (The result is 1 if the pointer is not null.)
• Converting between pointer types when the left-hand target type is upward compatible with the right-hand target type. See Compatible Types .

These type conversions occur automatically in certain contexts, which are:

converts 5 to double .

also converts 5 to double .

In all three contexts, if the conversion is impossible, that constitutes an error.

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Assignment conversions

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In assignment operations, the type of the value being assigned is converted to the type of the variable that receives the assignment. C allows conversions by assignment between integral and floating types, even if information is lost in the conversion. The conversion method used depends on the types involved in the assignment, as described in Usual Arithmetic Conversions and in the following sections:

Conversions from signed integral types

Conversions from unsigned integral types

Conversions from floating-point types

Conversions to and from pointer types

Conversions from other types

Type qualifiers do not affect the allowability of the conversion although a const l-value cannot be used on the left side of the assignment.

Type conversions

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