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KL5KUSB105
USB to 4 Serial Ports
Description
The Kawasaki USB to 4 Serial enables your system to have the capability to communicate between the USB (Universal Serial Bus) port and up to four serial port peripherals. This device meets the USB 1.0/1.1 and standard serial port specifications. All the advantages of USB are available to peripherals with serial port interface such as plug and play capabilities. With the USB Standard of high-speed data transfers, this device is ideal for connections to high-speed modems or ISDN terminal adapters. Kawasaki’s device and software enable the USB interface to be transparent to the peripheral and requires no firmware changes. This makes it possible for peripherals with serial interfaces to easily interface with USB with minimum modifications. This feature is ideal for Legacy applications.
Features
• • • • • • Advanced 16 Bit processor for USB transaction processing and control data processing Compliant with the USB 1.0/1.1 (Universal Serial Bus) 4 Serial Port 230kbps 128 byte FIFO Plug and Play compatible • • • • • • I2C interface Utilizes low cost external crystal circuitry 1.5K x 16 internal RAM buffer for fast communications Debug UART for debug and code development USB host device drivers available Single-chip solution in a 100 pin LQFP
Block Diagram
VP VM
USB Interface
Watchdog Timer
Channel 4 Channel 3 Channel 2 Serial Interface Channel 1 Serial Interface Serial Interface Serial Interface (4)
Timer 1 16 Bit Processor Timer 0 Serial Interface Engine
DTR RTS DCD DSR CTS RI Txd Rxd
16 Bit Address / Data Bus
CLK X2
PLL & Clock Generator
RAM (3KB)
Mask ROM
EEPROM Serial Interface
Debug UART
Txd Rxd
SCL
SDA
Kawasaki LSI • 2570 North First Street • Suite 301 • San Jose, CA 95131 • Tel: (408) 570-0555 • Fax: (408) 570-0567 • www.klsi.com
Ver. 1.8
1
KL5KUSB105
USB to 4 Serial Ports
KL5KUSB105 Application Block Diagram
KL5KUSB105
Serial Port
Serial Device Serial Device Serial Device Serial Device
USB
USB / 4 Serial Serial Port
Serial Port
Optional External Memory Serial EEPROM
Serial Port
Pin Diagram 100LQFP
VDD XD_15 XD_14 GND XD_13 XD_12 XD_11 XD_10 XD_9 XD_8 XD_7 XD_6 XD_5 XD_4 XD_3 XD_2 XD_1 XD_0 GND XA_13 XA_12 XA_11 XA_10 XA_9 XA_8 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
VDD SDA PU#1 UART4_DCD UART4_DSR UART4_CTS UART4_DTR UART4_RTS UART4_Rxd UART4_Txd UART3_RI nPWR_DWN GND UART1_Txd UART1_Rxd UART1_RTS UART1_DTR UART1_CTS UART1_DSR UART1_DCD UART1_RI nTXD GND VP VM
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
KL5KUSB105
100 LQFP
75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51
XA_7 XA_6 XA_5 XA_4 XA_3 XA_2 XA_1 GND nNTST nNRESET nXROMSEL nXWR nXRD UART3_DCD UART3_DSR UART3_CTS UART3_DTR UART3_RTS UART3_Rxd nXRAMSEL GND nXBHE XA_0 XA_14 VDD
VDD 26 N/C 27 SCL 28 GND 29 VCO_IN 30 CP_OUT 31 VDD 32 PLLEN 33 nRXD 34 N/C 35 N/C 36 UART2_Txd 37 UART2_Rxd 38 UART2_RTS 39 UART.