SL11R Просмотр технического описания (PDF) - Cypress Semiconductor

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SL11R

USB Controller/16-Bit RISC Processor Data Sheet

Cypress Semiconductor 

SL11R

1.0 Definitions

USB

Universal Serial Bus

SL11R

The SL11R is a Cypress USB Controller, which provides multiple functions on a single chip.

QT

Quick stream data Transfer engine, which contains a small set of RISC instructions designed for the

SL11R USB controller.

QTS

‘QT’ is a naming convention that represents QT Engine utility tools. For example: ‘QTS’ indicates all

tools, which interface with the RS232 serial interface port.

QTU

QT Engine Tools that interface with the USB port

R/W

Read/Write

PLL

Phase Lock Loop.

PWM

Pulse Width Modulation

DVC

Digital Video Camera

MFU

Multi Function Units

WDT

Watch Dog Timer

RAM

Random Access Memory

EPP

Enhanced Parallel Port: An asynchronous, byte-wide, bidirectional channel controlled by the host de-

vice. This mode provides separate address and data cycles over the eight data lines of the interface.

2-wire serial interface 2-wire Serial EEPROM interface.

R0-R15

SL11R Registers:

R0-R7 Data registers or general-purpose registers.

R8-R14 Address/Data registers, or general-purpose registers.

R15 Stack pointer register.

SL11R BIOS

A simulation model similar to 80x86 BIOS

2.0 References

[Ref. 1] SL11R_BIOS

[Ref. 2] SL11R_TOOLS

[Ref. 3] Universal Serial Bus Specification 1.1

3.0 Introduction

3.1 Overview

The SL11R is a low-cost, high-speed Universal Serial Bus (USB) RISC based Controller. It contains a 16-bit RISC processor with

built-in SL11R BIOS ROM to greatly reduce firmware development work. Its 2-wire serial EEPROM interface offers low cost

storage for USB device configuration and customer’s product-specific functions. New functions can be programmed into the 2-wire

serial interface by downloading them from a USB Host PC. This unique architecture provides the ability to upgrade products in

the field without changing the peripheral hardware.

The SL11R Processor can execute code from either internal ROM/RAM or external ROM and SRAM. The SL11R Programmable

bidirectional Data Port supports both DMA and I/O modes. A built in USB port supports data transfers up to 12 MBits/sec which

is the maximum USB transfer rate. All USB protocol modes are supported: Isochronous (up to 1024 bytes/packet), Bulk, Interrupt,

and Control. The SL11R requires a 3.3-Volt power supply, which can be powered via a USB host PC or a Hub. Suspend/Resume,

and Low power modes are available.

The SL11R offers an optimal solution for a variety of peripheral products such as: Scanners, Digital Cameras (Video and Still),

Color Printers, Multi-function Units (MFU), Faxes, External Storage devices, Monitors, Connectivity boxes, and other peripherals

that traditionally interface via EPP or SCSI to a host PC.

3.2 SL11R Features

• Cypress offers a Development Kit for each of its product lines. These Development Kits include multiple peripheral Mini-port

class drivers for Windows 98/ME/2000, firmware source code and demo USB source code for a variety of applications. Also

available is an SL11R “C” compiler, debugger, and assembler with a reference demo board.

• 48 MHz 16 bit RISC Processor

• Up to 16 bits of Programmable Bidirectional Data I/O

Document #: 38-08006 Rev. **

Page 8 of 85

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