Cypress CY7C68013A 18 I2C Controller, Compatible with Previous Generation EZ-USB FX2, Part Number

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CY7C68013A, CY7C68014A CY7C68015A, CY7C68016A

3.18 I2C Controller

FX2LP has one I2C port that is driven by two internal controllers, one that automatically operates at boot time to load VID/PID/DID and configuration information, and another that the 8051 uses when running to control external I2C devices. The I2C port operates in master mode only.

3.18.1 I2C Port Pins

The I2C pins SCL and SDA must have external 2.2 kΩ pull up resistors even if no EEPROM is connected to the FX2LP. External EEPROM device address pins must be configured properly. See Table 8 for configuring the device address pins.

Table 8. Strap Boot EEPROM Address Lines to These Values

Bytes

Example EEPROM

A2

A1

A0

16

24LC00[9]

N/A

N/A

N/A

128

24LC01

0

0

0

 

 

 

 

 

256

24LC02

0

0

0

 

 

 

 

 

4K

24LC32

0

0

1

 

 

 

 

 

8K

24LC64

0

0

1

 

 

 

 

 

16K

24LC128

0

0

1

 

 

 

 

 

3.18.2 I2C Interface Boot Load Access

At power on reset the I2C interface boot loader loads the VID/PID/DID configuration bytes and up to 16 KBytes of program/data. The available RAM spaces are 16 KBytes from 0x0000–0x3FFF and 512 bytes from 0xE000–0xE1FF. The 8051 is in reset. I2C interface boot loads only occur after power on reset.

3.18.3 I2C Interface General-Purpose Access

The 8051 can control peripherals connected to the I2C bus using the I2CTL and I2DAT registers. FX2LP provides I2C master control only, it is never an I2C slave.

3.19Compatible with Previous Generation EZ-USB FX2

The EZ-USB FX2LP is form, fit and with minor exceptions functionally compatible with its predecessor, the EZ-USB FX2. This makes for an easy transition for designers wanting to upgrade their systems from the FX2 to the FX2LP. The pinout and package selection are identical and a vast majority of firmware previously developed for the FX2 functions in the FX2LP.

For designers migrating from the FX2 to the FX2LP a change in the bill of material and review of the memory allocation (due to increased internal memory) is required. For more information about migrating from EZ-USB FX2 to EZ-USB FX2LP, see the application note titled Migrating from EZ-USB FX2 to EZ-USB FX2LP available in the Cypress web site.

Table 9. Part Number Conversion Table

EZ-USB FX2

EZ-USB FX2LP

Package Description

Part Number

Part Number

 

CY7C68013-56PVC

CY7C68013A-56PVXC or CY7C68014A-56PVXC

56-pin SSOP

 

 

 

CY7C68013-56PVCT

CY7C68013A-56PVXCT or CY7C68014A-56PVXCT

56-pin SSOP – Tape and Reel

 

 

 

CY7C68013-56LFC

CY7C68013A-56LFXC or CY7C68014A-56LFXC

56-pin QFN

 

 

 

CY7C68013-100AC

CY7C68013A-100AXC or CY7C68014A-100AXC

100-pin TQFP

 

 

 

CY7C68013-128AC

CY7C68013A-128AXC or CY7C68014A-128AXC

128-pin TQFP

 

 

 

Note

9. This EEPROM does not have address pins.

Document #: 38-08032 Rev. *L

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Contents Cypress Semiconductor Corporation 198 Champion Court Features CY7C68013A/14A/15A/16AFeatures CY7C68013A/14A only Logic Block DiagramFeatures CY7C68015A/16A only Functional Overview ApplicationsBus-powered Applications USB Boot MethodsReNumeration Interrupt SystemPriority INT2VEC Value Source INT2 USB InterruptsFIFO/GPIF Interrupt INT4 Reset Pin Reset and WakeupProgram/Data RAM Reset Timing Values ConditionInternal Code Memory, EA = Inside FX2LP Outside FX2LPExternal Code Memory, EA = Register AddressesEndpoint Configurations High -speed Mode Setup Data BufferEndpoint RAM Size × 64 bytes Endpoints 0 × 512 bytesMaster/Slave Control Signals 12.5 Default Full-Speed Alternate SettingsExternal Fifo Interface ArchitectureECC Generation7 Autopointer AccessGpif USB Uploads and DownloadsCompatible with Previous Generation EZ-USB FX2 18 I2C ControllerPart Number Conversion Table Package Description20 CY7C68013A/14A and CY7C68015A/16A Differences Pin AssignmentsIfclk PE0 PE1128 Pin Tqfp CY7C68013A/CY7C68014ACY7C68013A/CY7C68014A CY7C68013A/CY7C68014A 56-pin Ssop Pin Assignment CY7C68013A/CY7C68014A 56-pin SsopCY7C68015A/CY7C68016A Pin QFN CY7C68013A 56-pin Vfbga Pin Assignment Top View CY7C68013A/15A Pin Descriptions FX2LP Pin Descriptions 128 100 56 VF Name Type DefaultFX2LP Pin Descriptions 56 VF Name Type Default DescriptionPort WU2 IFCONFIG1..0FIFOADR0 FIFOADR1PORTCCFG.0 GPIFADR0GPIFADR1 PORTCCFG.1T0OUT Port ET1OUT T2OUTINT6 RXD1OUTT2EX GPIFADR8Flagc FlagbCTL3 CTL4Ground FX2LP Register Summary Register SummaryRegister can only be reset, it cannot be set Epie EP0CS E6CB Flowstb DPL0 = both read/write bit Absolute Maximum Ratings Thermal CharacteristicsOperating Conditions ΘJc + θCaAC Electrical Characteristics DC CharacteristicsUSB Transceiver Clkout Program Memory ReadProgram Memory Read Parameters Description Min Typ Max Unit CLKOUT17 Data Memory ReadData Memory Read Parameters Description Min Typ Max Unit Stretch = Data Memory WriteData Memory Write Parameters Description Min Max Unit WR# Strobe Function when Portc is Accessed by Portc Strobe Feature TimingsGpif Synchronous Signals Timing Diagram20 Gpif Synchronous SignalsSlave Fifo Synchronous Read Slave Fifo Synchronous Read Timing Diagram20Slave Fifo Asynchronous Read Slave Fifo Asynchronous Read Timing Diagram20Slave Fifo Synchronous Write Slave Fifo Synchronous Write Timing Diagram20Slave Fifo Synchronous Packet End Strobe Slave Fifo Asynchronous WriteSlave Fifo Asynchronous Packet End Strobe Slave Fifo Synchronous Write Sequence and Timing DiagramSlave Fifo Address to Flags/Data Slave Fifo Output EnableSlave Fifo Synchronous Address FIFOADR10 to SLRD/SLWR/PKTEND Setup TimeSlave Fifo Asynchronous Address RD/WR/PKTEND to FIFOADR10 Hold TimeSingle and Burst Synchronous Read Example Sequence Diagram10.17.2 Single and Burst Synchronous Write Slave Fifo Asynchronous Read Sequence and Timing Diagram20 Sequence Diagram of a Single and Burst Asynchronous ReadSlave Fifo Asynchronous Write Sequence and Timing Diagram20 Sequence Diagram of a Single and Burst Asynchronous WriteIdeal for non-battery powered applications Ideal for battery powered applicationsOrdering Information Development Tool KitLead Shrunk Small Outline Package O56 Package DiagramsLead QFN 8 x 8 mm LF56A Pin Thin Plastic Quad Flatpack 14 x 20 x 1.4 mm A100RA Lead Thin Plastic Quad Flatpack 14 x 20 x 1.4 mm A128 Vfbga 5 x 5 x 1.0 mm 0.50 Pitch, 0.30 Ball BZ56 PCB Layout RecommendationsCross-section of the Area Underneath the QFN Package Quad Flat Package No Leads QFN Package Design NotesIssue Orig. Description of Change Date Pyrs Cmcc

CY7C68013A specifications

The Cypress CY7C68013A is a high-performance USB microcontroller that belongs to Cypress's FX2LP family, specifically designed for USB applications. This microcontroller is well-regarded for its versatility, making it a popular choice for developers engaged in USB-enabled projects.

One of the main features of the CY7C68013A is its ability to support USB 2.0, with both high-speed (480 Mbps) and full-speed (12 Mbps) operation. This capability allows developers to take full advantage of the USB interface for data transfer, making it suitable for applications that require fast and efficient data communication. The device integrates a USB controller along with an 8051-compatible microcontroller, providing a seamless interface for USB transactions while also allowing for custom processing tasks.

The CY7C68013A offers 32 KB of internal RAM, which is a valuable resource for data buffering and temporary storage during data transfer operations. Additionally, it includes a programmable 8-bit I/O interface, which can be tailored to various application needs, facilitating control over peripheral devices. The microcontroller also features a 16-bit address bus and a 16-bit data bus, enhancing its ability to interface with external memory and components.

In terms of development, moving from concept to production becomes easier due to the availability of development kits and software support. The CY7C68013A is compatible with Cypress's EZ-USB development environment, which includes APIs and libraries that simplify the coding process. This software support empowers developers to create sophisticated USB-related applications without needing extensive background knowledge in USB protocol intricacies.

Regarding power efficiency, the CY7C68013A operates at low power consumption levels, making it suitable for battery-operated devices. It supports various low-power modes, which further enhances its appeal for portable applications.

Overall, the Cypress CY7C68013A stands out for its robust features, flexibility, and ease of use, making it an ideal choice for engineers working on USB-centric designs. Its combination of high-speed USB functionality, ample internal resources, and strong software support positions it as a go-to microcontroller for a wide variety of applications, ranging from consumer electronics to industrial systems.
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