Cypress CY7C67200 manual Introduction, Processor Core Functional Overview, Interface Descriptions

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CY7C67200

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.

Table 1. Interface Options for GPIO Pins

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

 

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

 

 

 

 

 

Document #: 38-08014 Rev. *G

 

 

 

 

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Contents CY7C67200 EZ-OTG FeaturesTypical Applications CY16Interface Descriptions IntroductionProcessor Core Functional Overview USB Interface USB Interface Pins Pin Name Pin NumberOTG Interface Pins Pin Name Pin Number OTG InterfaceHSS Interface Pins Pin Name Pin Number I2C Eeprom Interface Pins Pin Name Pin NumberSPI Interface Pins Pin Name Pin Number Serial Peripheral InterfaceHPI Addressing HPI A10 HPI Interface Pins 1 Pin Name Pin NumberHost Port Interface HPI Charge Pump InterfaceCrystal Interface Charge Pump Interface Pins Pin Name Pin NumberBooster Interface Boot Mode Crystal Pins Pin Name Pin NumberBoot Configuration Interface PinSleep Power Savings and Reset DescriptionPower Savings Mode Description Memory Map Registers Reserved Bank Register 0xC002 R/WBank Register Example Hex Value Binary Value Hardware Revision Register 0xC004 RCPU Speed Register 0xC008 R/W CPU Speed Definition Processor SpeedOTG Wake Enable Bit Host/Device 2 Wake Enable BitHost/Device 1 Wake Enable Bit HSS Wake Enable BitSPI Interrupt Enable Bit Halt Enable BitOTG Interrupt Enable Bit Host/Device 2 Interrupt Enable BitTimer 1 Interrupt Enable Bit Uart Interrupt Enable BitGpio Interrupt Enable Bit Timer 0 Interrupt Enable BitPull-down Enable Bit Port 2A Diagnostic Enable BitPort 1A Diagnostic Enable Bit LS Pull-up Enable BitWDT Enable Bit Timeout Flag BitLock Enable Bit Reset Strobe BitUSB Registers Register Name Address SIE1/SIE2 Timer n Register R/WGeneral USB Registers 0xC08A/0xC0AAUSB Data Line Pull-up and Pull-down Resistors Mode Port n Mode Select BitPort a Resistors Enable Bit Resistors Function Select EnableISO Enable Bit Preamble Enable BitSync Enable Bit Arm Enable BitHost 1 Count Register 0xC084 Host 2 Count Register 0xC0A4 Host n Address Register R/WHost n Count Register R/W Stall Flag Bit Error Flag BitUnderflow Flag Bit NAK Flag BitPID Select Definition ACK Flag BitHost n PID Register W PID SelectHost n Count Result Register R Host n Device Address Register WSOF/EOP Interrupt Enable Bit Vbus Interrupt Enable BitID Interrupt Enable Bit Port a Wake Interrupt Enable BitSOF/EOP Interrupt Flag Bit Vbus Interrupt Flag BitID Interrupt Flag Bit Port a Wake Interrupt Flag BitHost n SOF/EOP Counter Register R Host n SOF/EOP Count Register R/WCount Bits Count field sets the SOF/EOP counter duration USB Device Only Registers Host n Frame Register RUSB Device Only Registers Reserved Register Name Address Device 1/DeviceNAK Interrupt Enable Bit IN/OUT Ignore Enable BitStall Enable Bit Enable BitDevice n Endpoint n Address Register R/W Device n Endpoint n Count Register R/WDevice n Endpoint n Status Register R/W OUT Exception Flag BitError occurred Error did not occur Setup Flag BitTimeout occurred Timeout condition did not occur Exception Flag BitDevice n Endpoint n Count Result Register R/W Device n Endpoint n Count Result RegisterReset Interrupt Enable Bit Device n Interrupt Enable Register R/WSOF/EOP Timeout Interrupt Enable Bit EP7 Interrupt Enable BitEP3 Interrupt Enable Bit EP5 Interrupt Enable Bit EP2 Interrupt Enable BitEP4 Interrupt Enable Bit EP1 Interrupt Enable BitDevice n Address Register W Device n Status Register R/WEP6 Interrupt Flag Bit Reset Interrupt Flag BitEP7 Interrupt Flag Bit EP5 Interrupt Flag BitDevice n Frame Number Register R SOF/EOP Timeout Flag BitSOF/EOP Timeout Interrupt Counter Bits Device n SOF/EOP Count Register WCharge Pump Enable Bit Vbus Pull-up Enable BitReceive Disable Bit Vbus Discharge Enable BitMode Select Definition Gpio Configuration 108 111 Reserved Write Protect Enable BitSAS Enable Bit Vbus Valid Flag BitInterrupt 0 Enable Bit HSS Enable BitSPI Enable Bit Interrupt 0 Polarity Select BitGpio 0 Direction Register 0xC022 R/W Gpio 0 Input Data Register 0xC020 RGpio 1 Input Data Register 0xC026 R HSS Registers Register Name Address Gpio 1 Direction Register 0xC028 R/WHSS Registers Receive Interrupt Enable Bit Xoff Enable BitCTS Enable Bit RTS Polarity Select BitReceive Overflow Flag Bit Packet Mode Select BitTransmit Ready Bit Receive Packet Ready Flag BitHSS Data Register 0xC076 R/W HSS Transmit Gap Register 0xC074 R/WTransmit Gap Select Bits HSS Receive Address Register 0xC078 R/W HSS Receive Counter Register 0xC07A R/WHPI Registers HSS Transmit Address Register 0xC07C R/WHSS Transmit Counter Register 0xC07E R/W HPI Registers Register Name AddressSOF/EOP2 to HPI Enable Bit Vbus to HPI Enable BitID to HPI Enable Bit HPI Breakpoint Register 0x0140 RSOF/EOP1 to CPU Enable Bit SOF/EOP2 to CPU Enable BitSOF/EOP1 to HPI Enable Bit Reset2 to HPI Enable BitData Bits SIEXmsg Register WSIE1msg Register SIE2msg Register HPI Mailbox Register 0xC0C6 R/WID Flag Bit Reset2 Flag BitVbus Flag Bit SOF/EOP2 Flag BitMailbox Out Flag Bit SPI Registers Reset1 Flag BitDone1 Flag Bit SPI Registers Register Name AddressMaster Active Enable Bit 3Wire Enable BitPhase Select Bit Master Enable BitSCK Strobe Bit Byte Mode BitRead Enable Bit Fifo Init BitFifo Error Flag Bit Transmit Interrupt Enable BitTransfer Interrupt Enable Bit Receive Bit Length BitsTransfer Interrupt Flag Bit CRC Mode Definition CRCMode CRC PolynomialTransmit Interrupt Flag Bit Transmit Interrupt Clear BitReceive CRC Bit CRC Enable BitCRC Clear Bit One in CRC BitSPI Transmit Address Register 0xC0D8 R/W SPI Transmit Count Register 0xC0DA R/WUart Registers SPI Receive Address Register 0xC0DC R/WSPI Receive Count Register 0xC0DE R/W Uart Registers Register Name AddressBaud Select Bits Uart Enable BitScale Select Bit Uart Baud Select Definition Baud Rate DIV8 =Transmit Full Bit Uart Data Register 0xC0E4 R/WPin Descriptions Name Type Pin DiagramPin Descriptions GPIO19 General Purpose IO GPIO20 General Purpose IOA1 HPI A1 A0 HPI A0Operating Conditions Booster Power Input 2.7V toAbsolute Maximum Ratings Crystal Requirements XTALIN, XtaloutDC Characteristics AC Timing Characteristics Reset TimingParameter Description Min Typical Max Unit Clock TimingI2C Eeprom Timing HPI Host Port Interface Write Cycle Timing Read Pulse Width Data Access Time, from HPInRD fallingHPI Host Port Interface Read Cycle Timing Read Cycle Time Document # 38-08014 Rev. *GHSS Byte and Block Mode Receive HSS Byte Mode TransmitHSS Block Mode Transmit Hardware CTS/RTS Handshake Hssrts HssctsRegister Summary Register SummaryGPIO31 GPIO30 GPIO29 SE0 SOF/EOP2 Ordering Information Ordering Code Package Type PB-Free Package DiagramOrdering Information Ball 7.00 mm x 7.00 mm x 1.2 mm Fbga BA48Issue Orig. Description of Change Date Document History
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