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參數(shù)資料
| 型號(hào)： | KCUSB3 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB Controller ? Quick Interface |
| 中文描述： | USB控制器？快速接口 |
| 文件頁(yè)數(shù)： | 5/8頁(yè) |
| 文件大?。?/td> | 70K |
| 代理商： | KCUSB3 |
Kawasaki LSI
2570 North First Street
Suite 301
San Jose, CA 95131
Tel: (408) 570-0555
Fax: (408) 570-0567
www.klsi.com
K
KCUSB3
USB Controller – Quick Interface
K AWASAK I
LSI
5
Ver. 1.3
Pin
Number
94
95
96
97
98
99
100
* Dedicated GPIO’s are not selected.
I/O
Pin Name
Description
Programmable
I/O Mode *
IN/OUT
IN/OUT
IN
IN/OUT
IN/OUT
IN
IN/OUT
XD_10
XD_11
IGND
XD_12
XD_13
OGND
XD_14
External Data Pins
External Data Pins
GND
External Data Pins
External Data Pins
GND
External Data Pins
Function Description
16 Bit Processor
The integrated 16 bit processor serves as a micro controller for USB peripherals. The processor
can execute approximately five million instructions per second. With this processing power it
allows the design of intelligent peripherals that can process data prior to passing it on to the host
PC, thus improving overall performance of the system. The masked ROM (4K X 16) in the
KCUSB3 or external memory contains a specialized instruction set that has been designed for
highly efficient coding of processing algorithms and USB transaction processing.
The 16-bit processor is designed for efficient data execution by having direct access to the RAM
Buffer, external memory, I/O interfaces, and all the control and status registers. The
divide/multiply feature expands the capability of USB peripherals.
The processor contains sixteen general-purpose registers along with several special purpose
registers including a flag register and an interrupt enable register. Eight of these registers can be
used for indirect Addressing, with optional indexed and auto increment modes available. One of
these general-purpose registers is additionally used as a stack pointer. The register set is
mapped into RAM, and can be easily relocated for fast context switching.
The processor supports prioritized vectored hardware interrupts. In addition, as many as 240
software interrupt vectors are available.
The processor provides six addressing modes, supporting memory-to-memory, memory-to-
register, register-to-register, immediate-to-register or immediate-to-memory operations. Register,
direct, immediate, indirect, and indirect indexed addressing modes are supported. In addition,
there is an auto-increment mode in which a register, used as an address pointer is automatically
incremented after each use, making repetitive operations more efficient both from a programming
and a performance standpoint.
The processor features a full set of program control, logical, and integer arithmetic instructions.
All instructions are sixteen bits wide, although some instructions require operands, which may
occupy another one or two words. Several special “ short immediate” instructions are available,
so that certain frequently used operations with small constant operand will fit into a 16-bit
instruction.
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