Cypress 2100 - Manual
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Table of Contents:
- Page 2 – Complete USB Design Made Easy; Typical USB
- Page 4 – Unprecedented “Soft” Architecture; RAM Architecture; Host PC; Soft Configuration; RAM; Anchor Chips
- Page 6 – Automatically Handles Low-Level USB Overhead; Efficient EZ-USB Code; Firmware
- Page 7 – Comparison of Standard USB Request “Get Descriptor”; Conventional Method
- Page 8 – Turbo Performance; Turbo Bulk Capability
- Page 9 – A Leap in Performance with 8051 Compatibility
- Page 10 – Flexible for Many Applications; Loading 8051 Firmware from the Host
- Page 12 – EZ-USB Series 2100 Xcelerator Development Kit; Development Board
- Page 13 – Xcelerator Development Kit
- Page 14 – Packages and Pin Definitions
- Page 15 – IIIII
- Page 16 – Ordering Information
EZ-USB Series 2100 Family
The Anchor Chips EZ-USB™ family (AN21XX/AN23XX) provides
significant improvements over other USB architectures including an
enhanced 8051 core, 4 or 8 Kbytes of RAM, an intelligent USB core, and
high-performance I/O ports. The family includes 16 different products to
accommodate the needs of different systems.
The enhanced 8051 core provides five times the performance of the
standard 8051, while maintaining complete 8051 software compatibil-
ity. With on-chip RAM, firmware code can be downloaded from the
host PC. This allows the peripheral manufacturer to easily modify and
transfer new code to current and new users. This on-chip memory
eliminates the need for external memory.
The EZ-USB family supports high-bandwidth transfers by providing
an efficient mechanism to move data between external memory and
the USB FIFOs. Using this “turbo mode,” the 8051 core can transfer
1024 bytes of data in or out of an isochronous FIFO in 338 microsec-
onds. This leaves a high percentage of the bandwidth for the processor
to service the application. The EZ-USB family also supports an equiva-
lent data transfer rate for bulk packets of over 2 Mbytes per second,
which is more than the USB bandwidth.
The EZ-USB family conforms to the high-speed (12 Mbps) require-
ments of USB Specification version 1.0, including support for remote
wake-up. The internal SRAM replaces Flash memory, EEPROM,
EPROM, or masked ROM that is conventionally used in other USB
solutions.
The EZ-USB family offers two packages, a 44 PQFP and an 80 PQFP.
All EZ-USB devices are pin- and software-compatible. And, all RAM
versions have ROM equivalents to allow easy migration for high-
volume applications.
Features
·
Single-chip, low-power
solution for high-speed USB
peripherals
·
Firmware downloadable
·
High-performance I/O port
·
Small board space (less than
1 square inch)
·
44 PQFP or 80 PQFP
·
USB Specification 1.1
compliant
·
Uses commercially-available
8051 software tools
·
Thirty-one flexible endpoints
·
All endpoints can be double
buffered
·
4 or 8 Kbytes of memory
·
Five times the speed of a
standard 8051
·
Supports composite devices
·
I²C controller
·
Supports isochronous, bulk,
control, and interrupt data
·
On-chip PLL
EZ-USB Series 2100
AN2121SC
AN2321SC
AN2125SC
AN2325SC
AN2126SC
AN2326SC
AN2131SC
AN2331SC
AN2135SC
AN2335SC
AN2136SC
AN2336SC
AN2131QC
AN2331QC
EZ-USB™ Series 2100
USB Controller
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Summary
EZ-USB Series 2100 High-Speed Peripheral Shared Memory Flash ROM EEPROM EPROM ROM Micro- processor DMS Controller(Optional) USB Protocol Controller Chip USB Port I/O The EZ-USB RAMarchitecture providesdesign and software flexibility. Its “soft” configurationenables peripheral manufacturersand design...
EZ-USB Series 2100 The focus of the EZ-USBfamily is to provide theperipheral designer amultitude of designconfigurations andmigration paths. The “soft,”programmable nature of theEZ-USB architectureprovides flexibility whileminimizing risks. USB requires synchronizationbetween four major technologysu...
EZ-USB Series 2100 USB firmware develop-ment is faster since thereis less code to write. This reduction in firmware allows thedesign team to concentrate moreon software development for theperipheral function. Fewer 8051 MIPs arededicated to USBprocessing. With the EZ-USB family, as little as 10% of8...
