KL5KUSB105 Просмотр технического описания (PDF) - KAWASAKI MICROELECTRONICS

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KL5KUSB105

USB to 4 Serial Ports

KAWASAKI MICROELECTRONICS 

Pin #

I/O

LQFP

95 IN/OUT

96 IN/OUT

97

98 IN/OUT

99 IN/OUT

100

*Pins are 5V tolerant.

Pin Name

XD_12*

XD_13*

GND

XD_14*

XD_15*

VDD

External Data Pins

External Data Pins

GND

External Data Pins

External Data Pins

VDD

KL5KUSB105

USB to 4 Serial Ports

Description

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 in the this device 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 processor supports prioritized vectored hardware interrupts and has as many as 240

software interrupt vectors.

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.

The Processor – Divide/Multiply function

The processor’s divide/multiply function contains all the instructions of the base processor that

additionally includes integer divide and multiply instructions. A signed multiply instructions takes

two 16-bit operands and returns a 32-bit result. A signed divide instruction divides a 32-bit

operand by a 16-bit operand.

Ver. 1.8

Kawasaki LSI • 2570 North First Street • Suite 301 • San Jose, CA 95131 • Tel: (408) 570-0555 • Fax: (408) 570-0567 • www.klsi.com

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