UNC20 Base Board
Contents
1. Pin Signal Type Description 1 A4 O 2 A5 TCK O ADDR 5 9 are multiplexed with 3 A6 TMS O l JTAG functionality controlled by 4 A7 TDI O I LEDLNK SEL signal 5 A8 TDO O O 6 A9 TRST O I 7 PORTAO UO PB23 DCD1 PA5 NPCS2 SPI Enable 8 PORTA1 UO PB24 CTS1 9 PORTA2 UO PB25 DSR1 10 PORTA3 I O PB21 RXD1 PAO MISO 11 PORTA4 I O PB22 port PA2 SPI_CLK IRQ4 12 PORTA5 O PB26 RTS1 13 PORTA6 O PD25 DTR1 14 PORTA7 I O PB20 TXD1 PA1 MOSI 15 PORTCO O PB29 IRQO 16 PORTC1 I PA30 CTS2 DRXD Debug Unit used as RS232 CTS on base board 17 PORTC2 O PA25 IRQ2 TWD DC Hardwired as I2C data signal SDA on module 18 PORTC3 PA22 RXD2 used as RS232 RXD on base board 19 PORTC4 O PA24 port RESET_OUT 20 PORTC5 O PA31 RTS2 DTXD Debug Unit used as RS232 RTS on base board 21 PORTC6 I O PA26 IRQ1 TWCK_I2C Hardwired as I2C clock signal SCL on module 23 UNC20 Base Board User s Manual Pin Signal Type Description 22 PORTC7 O PA23 TXD2 IRQ3 Used as RS232 TXD on base board 23 3 3V P Power Supply 24 GND P Ground Connection 25 RSTIN Reset Input 26 TPIP Ethernet Input 27 TPIN Ethernet Input 28 TPOP O Ethernet Output 29 TPON O Ethernet Output 30 LEDLNK SEL O Ethernet Activity LED ADDR JTAG Selection JTAG active2. A 0 7 pins and on the same pins on the UNC90 which are led out to the wire wrap area so that users can configure this port to suit their application Additionally they are connected to X11 allowing the usage of a level shifter board TTL_232_1 FS article 0276 4 3 3 Serial Port 3 Debug Port only UNC90 Port C1 and port C5 have the special function serial debug TXD and RXD on the UNC90 These signals are connected to X12 allowing the usage of a level shifter board TTL_232_1 FS article 0276 Remove R51 and R52 to prevent contention of the serial port signals RTS1 and CTS1 at X2 10 UNC20 Base Board User s Manual 4 4 Ethernet The 10 100 Ethernet MAC controller and PHY are included on the UNC20 and UNC90 Module An RJ45 jack is used with a status LED for Link Activity which is visible through a light pipe in the jack A separate Pulse transformer is assembled The pin allocation of the RJ45 connector X9 is as defined in the table below H 5 Function TD TD RD N C N C RD N C N C COIN OO oa Po ND gt 11 UNC20 Base Board User s Manual 4 5 JTAG Debugging A JTAG interface is required both for debug purposes and for boundary scan testing of the UNC20 and UNC90 Module during the manufacturing process The address lines ADDR 5 9 from the processor are multiplexed with the 5 JTAG lines The selection is done via the LEDLNK SEL si
3. Board User s Manual 4 6 8 Character Display A 16 pin header X8 with 0 1 2 54mm spacing is available on the Base Board to allow the user to add a simple character display module e g 20 characters by 4 lines or 20 characters by 2 lines A potentiometer is also assembled for adjusting the contrast VO The display uses either CS3 R24 default fitted or CS4 populate R18 and remove R24 This display module is not included with the UNC20 or UNC90 Developer s Kit Since the pinning is standardized these modules are readily available Pin Symbol Description 1 VSS GND 2 VDD 5V 3 VO LCD contrast adjust 4 RS Register Selection 5 R W Read Write 6 E Enable 7 DO 8 D1 9 D2 10 D3 11 D4 12 D5 13 D6 14 D7 15 VLED LED Backlight Anode 16 VLED LED Backlight Cathode 17 UNC20 Base Board User s Manual 4 6 9 Wire Wrap Area A wire wrap area is provided on the Base Board to allow users to quickly try out their own peripherals On the left of the wire wrap area is the 42 pin header X6 which is not assembled Pinout of X6 is described below Pin Function Pin Function 1 ADDR4 2 3 3V 3 ADDR5 4 CS4 5 ADDR6 6 CS3 7 ADDR7 8 OE 9 ADDR8 10 WE 11 ADDR9 12 ADDR3 13 PortAO 14 ADDR2 15 PortA1 16 ADDR1 17 PortA2 18 ADDRO 19 PortA3 20
4. ON 4 8 Power Supply and Reset The external main power supply is provided by a standard plugable power supply e g Friwo MPP15 FW7555M 06 which is connected to the power socket X1 on the Base Board The Base Board provides the power supply for the UNC20 and UNC90 Module and all onboard devices such as the serial line driver The external power supply for the board is 5V DC There is no power switch available The board is switched on by plugging in the power supply A red LED on the base board denotes power on A reset button is also provided 4 8 10 Voltage Requirements For the UNC20 and the UNC90 module only a single 3 3V DC power supply is needed However the character display X8 requires a 5V supply 4 8 11 RESET Support A reset button on the base board allows manual reset of the module The key pulse is extended with a reset controller to a minum length of 140ms Necessary for UNC90 which has an open drain reset signal and needs a reset signal with 90us pulse width minimum UNC20 has a bidirectional reset signal which is extended on the module by its controller 20 UNC20 Base Board User s Manual 5 UNC20 Connector X1 Pin Signal Type Description 1 A4 O 2 A5 TCK O ADDR 5 9 are multiplexed with 3 A6 TMS O l JTAG functionality controlled by 4 A7 TDI O I LEDLNK SEL signa
5. when grounded 31 USB O USB differential data negative 32 USB O USB differential data positive 33 D7 O Data line D7 34 D6 I O D 35 D5 I O D5 36 D4 I O D4 37 D3 O D3 38 D2 I O D2 39 D1 I O D1 40 DO I O DO 41 AO O Address Line 42 A1 O Address Line 43 A2 O Address Line 44 A3 O Address Line 45 WE O Write Enable 46 OE O Output Enable 24 UNC20 Base Board User s Manual The UNC90 connector is based on a standard DIP48 socket Pin Signal Type Description 47 CS3 O Chip Select 3 48 CS4 O Chip Select 4 25
6. DO 21 PortA4 22 D1 23 PortA5 24 D2 25 PortA6 26 D3 27 PortA7 28 D4 29 PortCO 30 D5 31 CTS1 PortC1 32 D6 33 SDA_I2C 34 D7 35 RxD1 PortC3 36 RESET 37 PortC4 38 TxD1 PortC7 39 RTS1 PortC5 40 GND 41 SCL_I2C 42 GND 18 UNC20 Base Board User s Manual 4 7 USB only UNC90 Originally the UNC20 Module was intended to have a USB1 1 compliant USB controller supporting host mode However NetSilicon dropped this feature from the NS7520 processor Although the current UNC20 Module will now never have USB 2 of the 48 pins are reserved for USB to allow a future pin compatible module to support USB The UNC90 module has a USB 2 0 compliant controller connected to these pins Therefore a USB host and device connector is assembled on the UNCBAS_ 3 The pin allocation of the USB host connector X7 is as defined in the table below Pin Function 1 5V max 100mA 2 USB 3 USB 4 GND The pin allocation of the USB device connector X10 is as defined in the table below Pin Function 1 N C 2 USB 3 USB 4 GND 19 UNC20 Base Board User s Manual Only one connector can be used at a time either in host mode slow speed device mode or full speed device mode The used type is selected with quadruple switch S4 Function S1 S2 S3 S4 Host ON ON OFF OFF Low Speed Device OFF OFF ON OFF Full Speed Device OFF OFF OFF
7. The salient features of the UNC20 Module as delivered with the Developer s Kit are listed below NetSilicon s NS7520 microcontroller based on a 32 bit ARM7TDMI core 16 Mbytes SDRAM 8 Mbytes Flash Ethernet interface 2 serial communication interfaces I2C interface JTAG interface Please refer to the UNC20 User s Manual for more details on this module The pin out for the UNC20 Module can be found at the end of this Manual UNC20 Base Board User s Manual 4 2 UNC90 Module The UNC90 Module is a cost effective highly integrated module in a 48 pin dual inline package The salient features of the UNC90 Module as delivered with the Developer s Kit are listed below ATMEL s T91RM9200 microcontroller based on a 32 bit ARM920T core 16 Mbytes SDRAM 16 Mbytes Flash Ethernet interface USB 2 0 interface usable as host or device 2 serial communication interfaces Serial debug interface I2C interface JTAG interface Please refer to the UNC90 User s Manual for more details on this module The pin out for the UNC90 Module can be found at the end of this Manual UNC20 Base Board User s Manual 4 3 RS232 Serial Interface NS7520 and AT91RM9200 on the UNC20 or UNC90 module provides two serial ports Since these ports are multiplexed with the General Purpose I O pins ports A and C for UNC20 different port pins on one pin for the UNC90 it was decided only to assemble one serial port and leave the o
8. UNC20 UNC90 Base Board User s Manual P O Box 1103 Kueferstrasse 8 Tel 49 7667 908 0 SIS sales fsforth de A Digi International Company D 79200 Breisach Germany D 79206 Breisach Germany Fax 49 7667 908 200 http www fsforth de ES UNC20 Base Board User s Manual Copyright 2003 5 FS Forth Systeme GmbH Postfach 1103 79200 Breisach Germany Release of Document July 19 2005 Filename UNC20_BASE3_UMb doc Author K Rudolf Board Revision UNCBAS_3 All rights reserved No part of this document may be copied or reproduced in any form or by any means without the prior written consent of FS Forth Systeme GmbH UNC20 Base Board User s Manual Table of Contents 1 2Genetalsse hen ir Tannen enghlleutisgh 4 NM le A 3 Block Diagram Of Base Bo rd u r 2 nme ee 5 d Det lled Des ription u ancensn EE ENEE les un ala 6 417 UNC20 Modules entire ee a a as 6 4 2 UNG90 ModUlern uasn re et 7 4 3 RS232 Serial Interface 8 4 3 1 Serial Port 8 A 3 2 SOMA N en 10 4 3 3 Serial Port 3 Debug Port only UNC OO 10 Ethernet EE 11 4 5 JTAG Debugging u ecke 12 4 5 4 Parallel Port JTAG Adapter ssnnsnnnennenrennrrrnrrrrrrrrrrrrrrrrrrrnns 12 4 5 5 JTAG Booster AAA 13 4 5 6 ARM standard JTAG CGonnechoat 14 e A lee EE 15 4 6 7 Switches and LED cece eeeeeeeeeeeee tees tees eeeeseeeeeeeeeeees 16 4 6 8 Character DIS play tise 2 22 2 ee 17 4 6 9 Wire W
9. ch allows accelerated programming of the on board Flash An 8 pin header X3 is provided for connecting the JTAG Booster Note that the JTAG Booster is not part of the standard UNC20 or UNC90 Developer s Kit 13 UNC20 Base Board User s Manual 4 5 6 ARM standard JTAG Connector The JTAG connector X4 is a 20 pin header as defined by ARM Ltd and can be used for connecting a range of development tools such as ARM s Multi ICE Abatron s BDI2000 and EPI s JEENI Pin Function Pin Function 1 3 3V 2 3 3V 3 TRST 4 GND 5 TDI 6 GND 7 TMS 8 GND 9 TCK 10 GND 11 RTCK 12 GND 13 TDO 14 GND 15 SRST 16 GND 17 N C 18 GND 19 N C 20 GND The signal RTCK is not used and is connected via a OR resistor to TCK 14 UNC20 Base Board User s Manual 4 6 Peripherals An 8 bit data bus and 10 bit address bus are provided for connecting external peripherals to the UNC20 and UNC90 Two individually programmable chip selects CS3 and CS4 for the UNC20 and UNC90 and an OE Output Enable and WE Write Enable signal allow a vast range of 8 bit peripherals to be connected directly to the modules without any glue logic In addition every Module has two 8 bit General Purpose I O ports GPIO connected Some of these 16 GPIO pins are already used on the Base Board The following table gives an overview showing those signals which are free to be used by a
10. dditional hardware in the wire wrap area X6 UNC20 and UNC90 Port A Use Port C Use AO DCDO free if serial CH Push button free if port 0 unused button unused A1 CTSO free if serial C1 CTS1 or debug RXD port O unused only UNC90 free if CTS1 and debug RXD unused A2 DSRO free if serial C2 I2C SDA port 0 unused A3 RXDO free if serial C3 RXD1 port 0 unused A4 LED or RIO free if C4 Push button free if button jumper removed and unused serial port 0 unused A5 RTSO free if serial C5 RTS1 or debug TXD port O unused only UNC90 free if debug TXD and RTS1 unused A6 LED or DTRO free if C6 12C SCL jumper removed and serial port 0 unused A7 TXDO free if serial C7 TXD1 free if TXD1 port 0 unused unused 15 UNC20 Base Board User s Manual 4 6 7 Switches and LEDs The Base Board contains 2 push buttons connected to Port CO and Port C4 which can be used by the application to input information Also 2 user LEDs are assembled to signal output activity for the applications The 2 LEDs and 2 switches are connected to 4 GPIO pins Since the LEDs use Port A4 and Port A6 which might be required by other peripherals in the wire wrap area they can be disabled by removing J1 5 6 PIN A Description when inserted Factory default 5 LL LEDsactive Inserted i Jumper settings for J1 connected pins 16 UNC20 Base
11. gnal JTAG is active when the LED connected to LEDLNK SEL is shorted to ground This is achieved by inserting a jumper J1 on the base board Description when inserted Factory default 1 Lt JTAG active Bi DEE Jumper settings for J1 connected pins To activate the JTAG interface the jumper has to be inserted There are 3 connectors available on the base board for accessing JTAG firstly the ARM defined 20 pin header secondly the 8 pin header for FS Forth Systeme s JTAG Booster thirdly the Parallel Port JTAG adapter PPJ is implemented on the board using a buffer together with a standard 25 pin parallel port connector DB25P 4 5 4 Parallel Port JTAG Adapter The parallel port JTAG adapter allows for a direct connection between the host PCs parallel port and the JTAG pins of the UNC20 and UNC90 This allows a number of low cost Development Tools to be used without additional hardware 12 UNC20 Base Board User s Manual A 25 pin male D type connector X5 is provided for this purpose Pin Parallel Function JTAG Function 2 DO TDI 3 D1 TMS 4 D2 TCK 5 D3 TRST 7 D5 Reset 8 D6 Port Sense 10 ACK Port Sense 12 PE TDO 15 ERROR VCC sense A parallel cable for connecting the host PC s parallel port to X5 is provided with the UNC20 and UNC90 Developer s Kits 4 5 5 JTAG Booster FS Forth Systeme offers a JTAG Booster whi
12. l 5 A8 TDO O O 6 A9 TRST O I 7 PORTAO UO 8 PORTA1 UO 9 PORTA2 O 10 PORTA3 UO 11 PORTA4 UO 12 PORTA5 O 13 PORTA6 UO 14 PORTA7 O 15 PORTCO UO 16 PORTC1 RS232 CTS 17 PORTC2 O Hardwired as I2C data signal SDA 18 PORTC3 RS232 RXD 19 PORTC4 UO 20 PORTC5 O RS232 RTS 21 PORTC6 I O Hardwired as 12C clock signal SCL 22 PORTC7 O RS232 TXD 23 3 3V P Power Supply 24 GND P Ground Connection 21 UNC20 Base Board User s Manual Pin Signal Type Description 25 RSTIN Reset Input 26 TPIP Ethernet Input 27 TPIN Ethernet Input 28 TPOP O Ethernet Output 29 TPON O Ethernet Output 30 LEDLNK SEL O Ethernet Activity LED ADDR JTAG Selection JTAG active when grounded 31 USB O USB differential data negative 32 USB I O USB differential data positive 33 D31 I O Data line D7 34 D30 O D6 35 D29 O D5 36 D28 I O D4 37 D27 O D3 38 D26 I O D2 39 D25 I O Di 40 D24 O DO 41 AO O Address Line 42 A1 O Address Line 43 A2 O Address Line 44 A3 O Address Line 45 WE O Write Enable 46 OE O Output Enable 47 CS3 O Chip Select 3 48 CS4 O Chip Select 4 The UNC20 connector is based on a standard DIP48 socket 22 UNC20 Base Board User s Manual 6 UNC90 Connector X1
13. rap Area 18 4 7 USB only UNC90 0 cece cece eee e eee e eter ete e eter et eeeeeeeeeeeteeeeeeeeeeeeeeeeees 19 4 8 Power Supply and Reset ccccccceccceeceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeteees 20 4 8 10 Voltage Requirements Au nannten 20 4 811 RESET SUpport an a 20 5 UNG20 Connector XA Hauses Hanke emo ries een 21 6 UNC90 Connector XA 23 UNC20 Base Board User s Manual 1 General The UNC20 Base Board is the standard carrier board as used in the UNC20 and UNC90 Developer s Kits This document refers to the UNCBAS_3 revision of the board which has the Part Number 358 and a serial number gt 0300 The board s name can be found on the label above the combined part number serial number 2 Features Base board which accommodates one UNC20 UNC90 Module Ethernet interface with RJ45 connector with integrated link LED 1 serial communication RS232 interfaces JTAG interface LEDs for power and communication 2 switches for use by application Manual reset switch and reset generator Support for external Character Display Host and device USB support USB2 0 compliant only UNC90 UNC20 Base Board User s Manual 3 Block Diagram Of Base Board JTAG DB25P USB Host Serial DB9P UNC20 Base Board User s Manual 4 Detailed Description 4 1 UNC20 Module The UNC20 Module is a cost effective highly integrated module in a 48 pin dual inline package
14. ther for the user to configure 4 3 1 Serial Port 1 Serial Port 1 can be used as a console port to communicate with a host PC An RS232 driver the MAX3320 from Maxim is assembled on the Base Board This driver guarantees baudrates up to 250kbps This port will operate in asynchronous RS232 full duplex mode The RS232 port supports minimal hardware control signals namely RTS and CTS only and is derived from the UNC20 module s Port C pins and on the UNC90 module same pins with the same function A 9 pin D type connector male is assembled on the base board The pin allocation of the 9 way D type connector X2 is as defined in the table below UNC20 Base Board User s Manual Pin Function N C RXD TXD N C GND N C RTS or debug TXD on UNC90 8 CTS or debug CTS on UNC90 9 N C NIOJ AION If a serial console is not required and the 4 Port C pins are required for GPIO then the serial driver can be forced into an off state meaning that the on chip pwer supply is shut down by connecting a jumper between pins 3 amp 4 of J1 IN A Description when inserted Factory default 3 Serial driver forced off EEE BE Jumper settings for J1 connected pins To disable the serial driver the jumper has to be inserted UNC20 Base Board User s Manual 4 3 2 Serial Port 2 Serial Port 2 is available on the UNC20 module s Port
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