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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 6/8頁 |
| 文件大小： | 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
6
Ver. 1.3
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.
RAM Buffer
The USB controller contains a 3K byte (1.5K X 16) internal buffer memory. The memory is used
to buffer data and USB packets and accessed by the 16 Bit processor and the SIE. USB
transactions are automatically routed to the memory buffer. The 16-bit processor has the ability
to set up pointers and block sizes in buffer memory for USB transactions. Data is read from the
interface and is processed and packetized by the 16-bit I/O processor.
PLL Clock Generator
The PLL circuitry is provided to generate the internal 48MHz clock requirements. This circuitry is
designed to allow use of a low cost 12 MHz external crystal which is connected to the KCUSB3
pins X1 and X2. If an external 12 MHz clock is available in the application, it may be used in lieu
of the crystal circuit and connected directly to the X1 input pin.
USB Interface
The USB controller meets the Universal Serial Bus (USB) specification ver 1.0. The transceiver
is capable of transmitting and receiving serial data at the USB’s full speed, 12 Mbits/sec data
rate. The driver portion of the transceiver is differential, while the receive section is comprised of
a differential receiver and two single ended receivers. Internally, the transceiver interfaces to the
SIE logic. Externally, the transceiver connects to the physical layer of the USB.
A/D interface
The integrated A/D interface is a ten bit A/D interface with eight Analog Inputs and converts data
at 100K samples per second.
PWM Interface
Four PWM output channels are available with each channel capable of converting 10 bits at a
rate up to 48 KHz.
UART Interface
Supports a transfer rate of 900 to 115.2K baud.
General Purpose I/O
Up to 25 general purpose I/O signals are available. Most of the GPIOs can be configured for
special purpose functions such as PWM, Serial EEPROM interface, Digital Input, etc.
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