KL5KUSB108 查看數據表（PDF） - KAWASAKI MICROELECTRONICS
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KL5KUSB108 Datasheet PDF : 8 Pages
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KL5KUSB108
USB to 2 Serial / 1 Parallel
Pin #
I/O
Pin Name
Description
LQFP
93 IN/OUT
XD_10*
External Memory Data Pin
94 IN/OUT
XD_11*
External Memory Data Pin
95 IN/OUT
XD_12*
External Memory Data Pin
96 IN/OUT
XD_13*
External Memory Data Pin
97
GND
GND
98 IN/OUT
XD_14*
External Memory Data Pin
99 IN/OUT
XD_15*
External Memory Data Pin
100
VDD
VDD
Note 1: Pins with * are 5V tolerant.
Note 2: If application does not require some pins, then tie all unused imput pins to GND and make all
unused output and bi-directional pins open.
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 instruction takes
Ver. 1.2
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