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1. Jumper in 9 amp 10 connects GPIO12 to LED Jumper in 11 amp 12 connects GPIO13 to LED Jumper in 13 amp 14 connects GPIO14 to LED Jumper in 15 amp 16 connects GPIO15 to LED Header for connecting GPIO 15 8 signals of QFN package Installed but not used Selects the supply voltage for VDD for 24 pin TSSOP packages Jumper in 2 amp 4 selects VDD default Jumper in 1 amp 3 selects VDD Jumper in 3 amp 5 selects VDD Selects the corresponding signal for pin 21 of 24 pin TSSOP package NOTE Use J78 pin 2 amp 3 Selects the corresponding signal for pin 2 of 24 pin TSSOP package Jumper in 2 amp 4 selects SI signal default Jumper in 1 amp 3 selects A1 signal Jumper in 3 amp 5 selects A1 signal Selects the corresponding signal for pin 3 of 24 pin TSSOP package Jumper in 2 amp 4 selects RESET signal default Jumper in 1 amp 3 selects A2 signal Jumper in 3 amp 5 selects RESET signal Selects the corresponding signal for pin 23 of 24 pin TSSOP package Jumper in 2 amp 4 selects SO signal default Jumper in 1 amp 3 selects SDA signal Jumper in 3 amp 5 selects SDA signal Selects the supply voltage for VDDP for 24 pin TSSOP packages Installed but not used for XRA14031G24 F Jumper in 1 amp 2 selects VDDP Jumper in 2 amp 3 selects VDDP Selects the corresponding signal for pin 2 of 24 pin TSSOP package Installed but not used for XRA14031G24 F Jumper in 1 amp 2 selects VDD signal Jumper in 22. amp 3 selects VDD signal Selects the corresponding signal for pin 21 of 24 pin TSSOP package Jumper in 2 amp 3 selects CS signal default Jumper in 1 amp 2 selects AO signal COM Exar XRA1403 1405 EVALUATION BOARD USER S MANUAL TABLE 5 JUMPER SETTINGS FOR XRA14031G24 F JUMPERS FUNCTIONS Selects the corresponding signal for pin 3 of 24 pin TSSOP package COMMENTS Installed but not used for XRA14031G24 F Jumper in 1 amp 2 selects RESET signal Jumper in 2 amp 3 selects SI signal EXAR REV 1 0 0 Selects the corresponding signal for pin 23 of 24 pin TSSOP package Installed but not used for XRA14031G24 F Jumper in 1 amp 2 selects SDA signal Jumper in 2 amp 3 selects SO signal J81 J82 J83 J84 J85 J86 J87 J88 J89 J90 Not used for XRA14031G24 F Not installed www BDTIC com Exar EXAR REV 1 0 0 2 2 4 XRA14051L24 F XRA1403 1405 EVALUATION BOARD USER S MANUAL The following jumpers apply to the XRA14051L24 F JUMPERS TABLE 6 JUMPER SETTINGS FOR XRA14051L24 F FUNCTIONS Header for connecting GPIO 7 0 signals of QFN package COMMENTS Jumper in pin 1 amp J29 pin 1 connects GPIOO to LED Jumper in pin 2 amp J29 pin 3 connects GPIO1 to LED Jumper in pin 3 amp J29 pin 5 connects GPIO2 to LED Jumper in pin 4 amp J29 pin 7 connects GPIO3 to LED Jumper in pin 5 amp J29 pin 9 connects GPIO4 to LED Jumper in pin 6 amp J29 pin 11 connects GP
3. 2 EVALUATION BOARD ORDERING PART NUMBERS PART NUMBER XRA14031L24 0B EB XRA14031G24 0B EB XRA14051L24 0B EB XRA14051G24 0B EB www lt COM Exar EXAR XRA1403 1405 EVALUATION BOARD USER S MANUAL REV 1 0 0 2 2 Jumper Settings 2 2 1 Common Jumpers The following jumpers apply to all the 4 packages of XRA1403 and XRA1405 TABLE 3 COMMON JUMPER SETTINGS JUMPERS FUNCTIONS COMMENTS Selects the supply voltage to generate 1 amp 2 selects 5V default Pin 1 Test point for external 5V the 1 8V power supply for the board 2 amp 3 selects P Note Not installed Trace between 1 amp 2 Selects the supply voltage to generate 1 amp 2 selects 5V default the 2 5V power supply for the board 2 amp 3 selects P Note Not installed Trace between 1 amp 2 Selects the supply voltage to generate 1 amp 2 selects 5V default the 3 3V power supply for the board 2 amp 3 selects P Note Not installed Trace between 1 amp 2 Selects the supply voltage for VDDP Used only for the XRA1405 Jumper in 1 amp 2 selects 3 3V Jumper in 3 amp 4 selects 2 5V Jumper in 5 amp 6 selects 1 8V Selects the supply voltage for VDD Jumper in 1 amp 2 selects 3 3V default Jumper in 3 amp 4 selects 2 5V Jumper in 5 amp 6 selects 1 8V Not used for XRA140x Installed but not used Not used for XRA140x Installed but not used Not used Installed but not used LEDs Note Not installed Pin 2 is conne
4. D 0 ohm resistor on board 5 amp 6 connects GPIO2 to LED 0 ohm resistor on board 7 amp 8 connects GPIO3 to LED 0 ohm resistor on board 9 amp 10 connects GPIO4 to LED 0 ohm resistor on board 11 amp 12 connects GPIO5 to LED 0 ohm resistor on board 13 amp 14 connects GPIO6 to LED 0 ohm resistor on board 15 amp 16 connects GPIO7 to LED 0 ohm resistor on board Header for connecting GPIO 15 8 signals 1 amp 2 connects GPIO8 to LED 0 ohm resistor on board of TSSOP package to LEDs 3 amp 4 connects GPIO9 to LED 0 ohm resistor on board 5 amp 6 connects GPIO10 to LED 0 ohm resistor on board 7 amp 8 connects GPIO11 to LED 0 ohm resistor on board 9 amp 10 connects GPIO12 to LED 0 ohm resistor on board 11 amp 12 connects GPIO13 to LED 0 ohm resistor on board 13 amp 14 connects GPIO14 to LED 0 ohm resistor on board 15 amp 16 connects GPIO15 to LED 0 ohm resistor on board Header for connecting GPIO 15 8 signals Jumper in pin 1 amp J30 pin 1 connects GPIO8 to LED of QFN package Jumper in pin 2 amp J30 pin 3 connects GPIO9 to LED Jumper in pin 3 amp J30 pin 5 connects GPIO10 to LED Jumper in pin 4 amp J30 pin 7 connects GPIO11 to LED Jumper in pin 5 amp J30 pin 9 connects GPIO12 to LED Jumper in pin 6 amp J30 pin 11 connects GPIO13 to LED Jumper in pin 7 amp J30 pin 13 connects GPIO14 to LED Jumper in pin 8 amp J30 pin 15 connects GPIO15 to LED Selects the supply voltage for VDD for Jumper in 2 amp 4 se
5. EXAR REV 1 0 0 _ XRA1403 1405 EVALUATION BOARD USER S MANUAL INTRODUCTION This user s manual is for the XRA1403 1405 16 bit evaluation board Table 1 shows the different devices and packages that the evaluation board supports This user s manual will describe the hardware setup required to operate the different packages 1 0 QUICK START To verify communication with the GPIO expander the following steps are recommended 1 1 Connect external 5V power supply to J8 pin 1 1 2 Connect J12 pin 13 and 14 to ground of external power supply 1 3 Connect to MCU SPI interface for SPI clock SCK_SCL signal at J5 pin11 SO SO_SPI signal at J5 pin17 SI SI_SPI signal at J5 pin21 CS CS _SPI signal at J5 pin19 1 4 From the MCU write the following registers GCR1 0x00 GCR2 0x00 If the LEDs turn on the communication with the GPIO expander is successful To disable connection to LEDs remove jumpers on J28 J29 J30 and J31 Connect to external inputs or outputs at J3 and J4 2 0 HARDWARE SETUP 2 1 Packages description The evaluation board supports all 4 packages of the XRA1403 and XRA1405 The ordering part number package and location on the board is shown below in Table 1 Table 2 lists the evaluation board ordering part numbers TABLE 1 PACKAGE LIST ORDERING PART NUMBER PACKAGE LOCATION XRA14031L24 F 24 pin QFN XRA14031G24 F 24 pin TSSOP XRA14051L24 F 24 pin QFN XRA14051G24 F 24 pin TSSOP TABLE
6. IO5 to LED Jumper in pin 7 amp J29 pin 13 connects GPIO6 to LED Jumper in pin 8 amp J29 pin 15 connects GPIO7 to LED Header for connecting GPIO 7 0 signals of TSSOP package to LEDs 1 amp 2 connects GPIOO to LED 0 ohm resistor on board 3 amp 4 connects GPIO1 to LED 0 ohm resistor on board 5 amp 6 connects GPIO2 to LED 0 ohm resistor on board 7 amp 8 connects GPIO3 to LED 0 ohm resistor on board 9 amp 10 connects GPIO4 to LED 0 ohm resistor on board 11 amp 12 connects GPIO5 to LED 0 ohm resistor on board 13 amp 14 connects GPIO6 to LED 0 ohm resistor on board 15 amp 16 connects GPIO7 to LED 0 ohm resistor on board Header for connecting GPIO 15 8 signals of TSSOP package to LEDs 1 amp 2 connects GPIO8 to LED 0 ohm resistor on board 3 amp 4 connects GPIO9 to LED 0 ohm resistor on board 5 amp 6 connects GPIO10 to LED 0 ohm resistor on board 7 amp 8 connects GPIO11 to LED 0 ohm resistor on board 9 amp 10 connects GPIO12 to LED 0 ohm resistor on board 11 amp 12 connects GPIO13 to LED 0 ohm resistor on board 13 amp 14 connects GPIO14 to LED 0 ohm resistor on board 15 amp 16 connects GPIO15 to LED 0 ohm resistor on board Header for connecting GPIO 15 8 signals of QFN package Jumper in pin 1 amp J30 pin 1 connects GPIO8 to LED Jumper in pin 2 amp J30 pin 3 connects GPIO9 to LED Jumper in pin 3 amp J30 pin 5 connects GPIO10 to LED Jumper in pin 4 amp J30 pin 7 connects GPIO11 to LED Jumper i
7. cted to GND Header for testing GPIO 15 8 of both Installed Connect to external input output TSSOP and QFN package Header for testing GPIO 7 0 of both Installed Connect to external input output Remove jumpers on TSSOP and QFN package J28 J29 J30 and J31 after test Header for internal test Not installed Header for XRA1403 and XRA1405 sig Installed Connect SPI signals from this header to MCU nals and spare signals Header for UART signals and spare sig Not installed Some GPIO signals and spare signals are accessi nals ble at this header www BDTIC com Exar EXAR REV 1 0 0 XRA1403 1405 EVALUATION BOARD USER S MANUAL 2 2 2 XRA14031L24 F The following jumpers apply to the XRA14031L24 F TABLE 4 JUMPER SETTINGS FOR XRA14031L24 F JUMPERS FUNCTIONS COMMENTS Header for connecting GPIO 7 0 signals Jumper in pin 1 amp J29 pint connects GPIOO to LED of QFN package Jumper in pin 2 amp J29 pin 3 connects GPIO1 to LED Jumper in pin 3 amp J29 pin 5 connects GPIO2 to LED Jumper in pin 4 amp J29 pin 7 connects GPIO3 to LED Jumper in pin 5 amp J29 pin 9 connects GPIO4 to LED Jumper in pin 6 amp J29 pin 11 connects GPIO5 to LED Jumper in pin 7 amp J29 pin 13 connects GPIO6 to LED Jumper in pin 8 amp J29 pin 15 connects GPIO7 to LED Header for connecting GPIO 7 0 signals 1 amp 2 connects GPIOO to LED 0 ohm resistor on board of TSSOP package to LEDs 3 amp 4 connects GPIO1 to LE
8. er in 3 amp 5 selects RESET signal Jumper in 2 amp 4 selects RESET signal Selects the corresponding signal for pin 23 of 24 pin TSSOP package Installed but not used for XRA14051G24 F Jumper in 1 amp 3 selects SDA signal Jumper in 3 amp 5 selects SDA signal Jumper in 2 amp 4 selects SO signal Selects the supply voltage for VDDP for 24 pin TSSOP packages Jumper in 2 amp 3 selects VDDP default Jumper in 1 amp 2 selects VDDP COM Exar EXAR XRA1403 1405 EVALUATION BOARD USER S MANUAL REV 1 0 0 TABLE 7 JUMPER SETTINGS FOR XRA14051G24 F JUMPERS FUNCTIONS COMMENTS Selects the corresponding signal for pin 2 Jumper in 2 amp 3 selects VDD signal default of 24 pin TSSOP package Jumper in 1 amp 2 selects VDD signal Selects the corresponding signal for pin Jumper in 2 amp 3 selects CS signal default 21 of 24 pin TSSOP package Jumper in 1 amp 2 selects AO signal Selects the corresponding signal for pin 3 Jumper in 2 amp 3 selects SI signal default of 24 pin TSSOP package Jumper in 1 amp 2 selects RESET signal Selects the corresponding signal for pin Jumper in 2 amp 3 selects SO signal default 23 of 24 pin TSSOP package Jumper in 1 amp 2 selects SDA signal Not used for XRA14051G24 F Not installed J89 J90 3 0 TECHNICAL SUPPORT If there are any questions please send an e mail to uarttechsupport exar com NOTICE EXAR Corporation reserves the right to make change
9. in 9 amp 10 connects GPIO4 to LED Jumper in 11 amp 12 connects GPIO5 to LED Jumper in 13 amp 14 connects GPIO6 to LED Jumper in 15 amp 16 connects GPIO7 to LED Header for connecting GPIO 15 8 signals of TSSOP package to LEDs Jumper in 1 amp 2 connects GPIO8 to LED Jumper in 3 amp 4 connects GPIO9 to LED Jumper in 5 amp 6 connects GPIO10 to LED Jumper in 7 amp 8 connects GPIO11 to LED Jumper in 9 amp 10 connects GPIO12 to LED Jumper in 11 amp 12 connects GPIO13 to LED Jumper in 13 amp 14 connects GPIO14 to LED Jumper in 15 amp 16 connects GPIO15 to LED Header for connecting GPIO 15 8 signals of QFN package Installed but not used Selects the supply voltage for VDD for 24 pin TSSOP packages Installed but not used for XRA14051G24 F Jumper in 1 amp 3 selects VDD Jumper in 3 amp 5 selects VDD Jumper in 2 amp 4 selects VDD Selects the corresponding signal for pin 21 of 24 pin TSSOP package Installed but not used for XRA14051G24 F Jumper in 1 amp 3 selects AO signal Jumper in 3 amp 5 selects AO signal Jumper in 2 amp 4 selects CS signal Selects the corresponding signal for pin 2 of 24 pin TSSOP package Installed but not used for XRA14051G24 F Jumper in 1 amp 3 selects A1 signal Jumper in 3 amp 5 selects A1 signal Jumper in 2 amp 4 selects SI signal Selects the corresponding signal for pin 3 of 24 pin TSSOP package Installed but not used for XRA14051G24 F Jumper in 1 amp 3 selects A2 signal Jump
10. lects VDD default 24 pin QFN packages Jumper in 1 amp 3 selects VDD Jumper in 3 amp 5 selects VDD Selects the corresponding signal for pin NOTE Use J87 pin 2 amp 3 18 of 24 pin QFN package Selects the corresponding signal for pin Jumper in 2 amp 4 selects SI signal default 23 of 24 pin QFN package Jumper in 1 amp 3 selects A1 signal Jumper in 3 amp 5 selects A1 signal Selects the corresponding signal for pin Jumper in 2 amp 4 selects RESET signal default 24 of 24 pin QFN package Jumper in 1 amp 3 selects A2 signal Jumper in 3 amp 5 selects RESET signal www COM Exar EXAR XRA1403 1405 EVALUATION BOARD USER S MANUAL REV 1 0 0 TABLE 4 JUMPER SETTINGS FOR XRA14031L24 F JUMPERS FUNCTIONS COMMENTS J85 Selects the corresponding signal for pin Jumper in 2 amp 4 selects SO signal default 20 of 24 pin QFN package Jumper in 1 amp 3 selects SDA signal Jumper in 3 amp 5 selects SDA signal J86 Selects the supply voltage for VDDP for Installed but not used for XRA14031L24 F 24 pin QFN packages Jumper in 1 amp 2 selects VDDP Jumper in 2 amp 3 selects VDDP J87 Selects the corresponding signal for pin Jumper in 2 amp 3 selects CS signal default 18 of 24 pin QFN package Jumper in 1 amp 2 selects AO signal J88 Selects the corresponding signal for pin Installed but not used for XRA14031L24 F 23 of 24 pin QFN package Jumper in 1 amp 2 selects VDD signal Jumper in 2 amp 3 select
11. n pin 5 amp J30 pin 9 connects GPIO12 to LED Jumper in pin 6 amp J30 pin 11 connects GPIO13 to LED Jumper in pin 7 amp J30 pin 13 connects GPIO14 to LED Jumper in pin 8 amp J30 pin 15 connects GPIO15 to LED Selects the supply voltage for VDD for 24 pin QFN packages Installed but not used for XRA1405IL24 F Jumper in 1 amp 3 selects VDD Jumper in 3 amp 5 selects VDD Jumper in 2 amp 4 selects VDD Selects the corresponding signal for pin 18 of 24 pin QFN package Installed but not used for XRA14051L24 F Jumper in 1 amp 3 selects AO signal Jumper in 3 amp 5 selects AO signal Jumper in 2 amp 4 selects CS signal COM Exar EXAR XRA1403 1405 EVALUATION BOARD USER S MANUAL REV 1 0 0 TABLE 6 JUMPER SETTINGS FOR XRA14051L24 F JUMPERS FUNCTIONS COMMENTS Selects the corresponding signal for pin Installed but not used for XRA14051L24 F 23 of 24 pin QFN package Jumper in 1 amp 3 selects A1 signal Jumper in 3 amp 5 selects A1 signal Jumper in 2 amp 4 selects SI signal Selects the corresponding signal for pin Installed but not used for XRA14051L24 F 24 of 24 pin QFN package Jumper in 1 amp 3 selects A2 signal Jumper in 3 amp 5 selects RESET signal Jumper in 2 amp 4 selects RESET signal Selects the corresponding signal for pin Installed but not used for XRA14051L24 F 20 of 24 pin QFN package Jumper in 1 amp 3 selects SDA signal Jumper in 3 amp 5 selects SDA signal Jumper in 2 amp 4 selects SO
12. s VDD signal J89 Selects the corresponding signal for pin Installed but not used for XRA1403IL24 F 24 of 24 pin QFN package Jumper in 1 amp 2 selects RESET signal Jumper in 2 amp 3 selects SI signal J90 Selects the corresponding signal for pin Installed but not used for XRA1403IL24 F 20 of 24 pin QFN package Jumper in 1 amp 2 selects SDA signal Jumper in 2 amp 3 selects SO signal J71 J72 Not used for XRA1403IL24 F Not installed J73 J74 J75 J76 J77 J78 J79 J80 www BDTIC com Exar EXAR REV 1 0 0 2 2 3 XRA14031G24 F XRA1403 1405 EVALUATION BOARD USER S MANUAL The following jumpers apply to the XR14031G24 F JUMPERS TABLE 5 JUMPER SETTINGS FOR XRA14031G24 F FUNCTIONS Header for connecting GPIO 7 0 signals of QFN package COMMENTS Installed but not used Header for connecting GPIO 7 0 signals of TSSOP package to LEDs Jumper in 1 amp 2 connects GPIOO to LED Jumper in 3 amp 4 connects GPIO1 to LED Jumper in 5 amp 6 connects GPIO2 to LED Jumper in 7 amp 8 connects GPIO3 to LED Jumper in 9 amp 10 connects GPIO4 to LED Jumper in 11 amp 12 connects GPIO5 to LED Jumper in 13 amp 14 connects GPIO6 to LED Jumper in 15 amp 16 connects GPIO7 to LED Header for connecting GPIO 15 8 signals of TSSOP package to LEDs Jumper in 1 amp 2 connects GPIO8 to LED Jumper in 3 amp 4 connects GPIO9 to LED Jumper in 5 amp 6 connects GPIO10 to LED Jumper in 7 amp 8 connects GPIO11 to LED
13. s to the products contained in this publication in order to improve design performance or reliability EXAR Corporation assumes no responsibility for the use of any circuits described herein conveys no license under any patent or other right and makes no representation that the circuits are free of patent infringement Charts and schedules contained here in are only for illustration purposes and may vary depending upon a user s specific application While the information in this publication has been carefully checked no responsibility however is assumed for inaccuracies EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness Products are not authorized for use in such applications unless EXAR Corporation receives in writing assurances to its satisfaction that a the risk of injury or damage has been minimized b the user assumes all such risks c potential liability of EXAR Corporation is adequately protected under the circumstances Copyright 2011 EXAR Corporation Datasheet October 2011 Send your UART technical inquiry with technical details to hotline uarttechsupport exar com Reproduction in part or whole without the prior written consent of EXAR Corporation is prohibited www BDTIC com Exar
14. signal Selects the supply voltage for VDDP for Jumper in 2 amp 3 selects VDDP default 24 pin QFN packages Jumper in 1 amp 2 selects VDDP J87 Selects the corresponding signal for pin Jumper in 2 amp 3 selects CS signal default 18 of 24 pin QFN package Jumper in 1 amp 2 selects AO signal J88 Selects the corresponding signal for pin Jumper in 2 amp 3 selects VDD signal default 23 of 24 pin QFN package Jumper in 1 amp 2 selects VDD signal J89 Selects the corresponding signal for pin Jumper in 2 amp 3 selects SI signal default 24 of 24 pin QFN package Jumper in 1 amp 2 selects RESET signal J90 Selects the corresponding signal for pin Jumper in 2 amp 3 selects SO signal default 20 of 24 pin QFN package Jumper in 1 amp 2 selects SDA signal J71 J72 Not used for XRA1405IL24 F Not installed J73 J74 J75 J76 J77 J78 J79 J80 www BDTIC com Exar EXAR REV 1 0 0 2 2 5 XRA14051G24 F XRA1403 1405 EVALUATION BOARD USER S MANUAL The following jumpers apply to the XR14051G24 F JUMPERS TABLE 7 JUMPER SETTINGS FOR XRA14051G24 F FUNCTIONS Header for connecting GPIO 7 0 signals of QFN package COMMENTS Installed but not used Header for connecting GPIO 7 0 signals of TSSOP package to LEDs Jumper in 1 amp 2 connects GPIOO to LED Jumper in 3 amp 4 connects GPIO1 to LED Jumper in 5 amp 6 connects GPIO2 to LED Jumper in 7 amp 8 connects GPIO3 to LED Jumper
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