CY7C68013A, CY7C68014A CY7C68015A, CY7C68016A

3.12 Endpoint RAM

3.12.1 Size

 

3× 64 bytes

(Endpoints 0 and 1)

8 × 512 bytes

(Endpoints 2, 4, 6, 8)

3.12.2Organization

EP0

Bidirectional endpoint zero, 64 byte buffer EP1IN, EP1OUT

64 byte buffers, bulk or interrupt EP2, 4, 6, 8

Eight 512 byte buffers, bulk, interrupt, or isochronous. EP4 and EP8 can be double buffered; EP2 and 6 can be either double, triple, or quad buffered. For high-speed endpoint configuration options, see Figure 5.

3.12.3 Setup Data Buffer

A separate 8 byte buffer at 0xE6B8-0xE6BF holds the setup data from a CONTROL transfer.

3.12.4 Endpoint Configurations (High -speed Mode)

Endpoints 0 and 1 are the same for every configuration. Endpoint 0 is the only CONTROL endpoint, and endpoint 1 can be either BULK or INTERRUPT.

The endpoint buffers can be configured in any 1 of the 12 config- urations shown in the vertical columns. When operating in the full-speed BULK mode only the first 64 bytes of each buffer are used. For example, in high-speed, the max packet size is 512 bytes but in full-speed it is 64 bytes. Even though a buffer is configured to a 512 byte buffer, in full-speed only the first 64 bytes are used. The unused endpoint buffer space is not available for other operations. An example endpoint configu- ration is the EP2–1024 double buffered; EP6–512 quad buffered (column 8).

 

 

 

 

Figure 5. Endpoint Configuration

 

 

 

 

 

EP0 IN&OUT

64

64

64

64

64

64

64

64

64

64

64

64

EP1 IN

64

64

64

64

64

64

64

64

64

64

64

64

EP1 OUT

64

64

64

64

64

64

64

64

64

64

64

64

 

EP2

EP2

EP2

EP2

EP2

EP2

EP2

EP2

EP2

EP2

EP2

EP2

 

512

512

512

512

512

512

1024

1024

1024

512

 

 

 

 

 

 

 

512

512

512

512

512

512

512

1024

 

 

 

 

 

1024

 

 

 

 

 

 

EP4

EP4

EP4

 

 

 

 

 

 

512

 

 

 

 

 

 

 

 

 

 

 

 

 

512

512

512

512

512

512

1024

1024

1024

EP6

1024

1024

 

512

512

512

512

512

512

 

 

 

512

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

EP6

EP6

EP6

EP6

EP6

EP6

EP6

EP6

EP6

512

1024

 

 

512

512

 

512

512

 

512

512

 

 

1024

 

1024

1024

1024

512

1024

 

512

512

512

512

512

512

 

 

 

 

 

 

EP8

EP8

 

 

EP8

 

 

EP8

 

 

EP8

 

 

1024

 

512

512

1024

512

512

1024

512

512

1024

512

512

 

512

512

 

 

512

512

 

512

512

 

512

512

 

 

 

 

 

 

 

 

 

 

1

2

3

4

5

6

7

8

9

10

11

12

Document #: 38-08032 Rev. *L

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Cypress CY7C68016A, CY7C68013 manual Endpoint RAM, Size × 64 bytes Endpoints 0 × 512 bytes, Organization, Setup Data Buffer

CY7C68016A, CY7C68014A, CY7C68015A, CY7C68013 specifications

The Cypress CY7C68013, CY7C68015A, CY7C68014A, and CY7C68016A are part of Cypress Semiconductor's EZ-USB family of microcontrollers, known for their high performance and flexibility in USB applications. These devices are primarily used for USB interfacing and have gained popularity in various industries due to their robust features and capabilities.

One of the main features of the CY7C68013 is its Dual FIFO architecture, allowing for efficient data transfer between USB and the system memory. This feature optimizes throughput and reduces CPU overhead, making it an excellent choice for applications that require high-speed data exchange, such as video streaming, data acquisition, and industrial automation. The device is equipped with a USB 2.0 interface which supports full-speed operation at 12 Mbps, ensuring compatibility with a wide range of USB devices.

The CY7C68015A, a similar variant, offers additional memory options, providing users with the flexibility to select the necessary capacity for their specific applications. This part is particularly useful in scenarios that demand more users or higher data storage, making it ideal for complex USB peripherals like printers and multifunction devices. Moreover, it includes a unique capability of upgradeable firmware, ensuring that the device remains relevant and functional as technology evolves.

In contrast, the CY7C68014A stands out with its support for isochronous data transfers, making it suitable for real-time applications that require timely data delivery. This is particularly important in audio and video applications where delays can impact performance. The device incorporates advanced power management features, allowing it to operate efficiently both in low and high-power modes.

Lastly, the CY7C68016A integrates enhanced security features, positioning it as an ideal choice for applications that require data integrity and protection against unauthorized access. It supports various encryption standards and provides secure boot capabilities, making it suitable for secure environments such as financial transactions and sensitive data processing.

In summary, the CY7C68013, CY7C68015A, CY7C68014A, and CY7C68016A microcontrollers offer a versatile suite of features that cater to a wide array of USB applications. Their design emphasizes performance, flexibility, and security, making them essential components in today's rapidly evolving technology landscape. Whether in consumer electronics, industrial automation, or specialized applications, these devices provide the reliability and efficiency that engineers and developers require.