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CY7C67200-BAXIT Datasheet(PDF) 2 Page - Cypress Semiconductor |
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CY7C67200-BAXIT Datasheet(HTML) 2 Page - Cypress Semiconductor |
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2 / 78 page  CY7C67200 Document #: 38-08014 Rev. *G Page 2 of 78 Introduction EZ-OTG™ (CY7C67200) is Cypress Semiconductor’s first USB On-The-Go (OTG) host/peripheral controller. EZ-OTG is designed to easily interface to most high-performance CPUs to add USB host functionality. EZ-OTG has its own 16-bit RISC processor to act as a coprocessor or operate in standalone mode. EZ-OTG also has a programmable IO interface block allowing a wide range of interface options. Processor Core Functional Overview An overview of the processor core components are presented in this section. Processor EZ-OTG has a general purpose 16-bit embedded RISC processor that runs at 48 MHz. Clocking EZ-OTG requires a 12 MHz source for clocking. Either an external crystal or TTL-level oscillator may be used. EZ-OTG has an internal PLL that produces a 48 MHz internal clock from the 12 MHz source. Memory EZ-OTG has a built-in 4K × 16 masked ROM and an 8K × 16 internal RAM. The masked ROM contains the EZ-OTG BIOS. The internal RAM can be used for program code or data. Interrupts EZ-OTG provides 128 interrupt vectors. The first 48 vectors are hardware interrupts and the following 80 vectors are software interrupts. General Timers and Watchdog Timer EZ-OTG has two built-in programmable timers and a watchdog timer. All three timers can generate an interrupt to the EZ-OTG. Power Management EZ-OTG has one main power-saving mode, Sleep. Sleep mode pauses all operations and provides the lowest power state. Interface Descriptions EZ-OTG has a variety of interface options for connectivity, with several interface options available. See Table 1 to understand how the interfaces share pins and can coexist. Below are some general guidelines: • I2C EEPROM and OTG do not conflict with any interfaces • HPI is mutually exclusive to HSS, SPI, and UART Table 1. Interface Options for GPIO Pins GPIO Pins HPI HSS SPI UART I2C OTG GPIO31 SCL/SDA GPIO30 SCL/SDA GPIO29 OTGID GPIO24 INT GPIO23 nRD GPIO22 nWR GPIO21 nCS GPIO20 A1 GPIO19 A0 GPIO15 D15 CTS GPIO14 D14 RTS GPIO13 D13 RXD GPIO12 D12 TXD GPIO11 D11 MOSI GPIO10 D10 SCK GPIO9 D9 nSSI GPIO8 D8 MISO GPIO7 D7 TX GPIO6 D6 RX GPIO5 D5 GPIO4 D4 GPIO3 D3 GPIO2 D2 GPIO1 D1 GPIO0 D0 [+] Feedback |
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