TABLE 1: PACKAGE LIST. XRA1402IL16-F 16-pin QFN U7. XRA1402IG16-F 16-pin TSSOP U6. XRA1404IL16-F 16-pin QFN U7. XRA1404IG16-F 16-pin TSSOP U6
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1 REV INTRODUCTION XRA1402/1404 EVALUATION BOARD USER S MANUAL This user s manual is for the XRA1402/ 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 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: GCR = 0x00 If the LEDs turn on, the communication with the GPIO expander is successful. To disable connection to LEDs, remove jumpers on J41 and J42. Connect to external inputs or outputs at J HARDWARE SETUP 2.1 Packages description The evaluation board supports all 4 packages of the XRA1402 and XRA1404. 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 XRA1402IL16-F 16-pin QFN U7 XRA1402IG16-F 16-pin TSSOP U6 XRA1404IL16-F 16-pin QFN U7 XRA1404IG16-F 16-pin TSSOP U6 TABLE 2: EVALUATION BOARD ORDERING PART NUMBERS PART NUMBER XRA1402IL16-0B-EB XRA1402IG16-0B-EB XRA1404IL16-0B-EB XRA1404IG16-0B-EB 1
2 XRA1402/1404 EVALUATION BOARD USER S MANUAL REV Jumper Settings Common Jumpers The following jumpers apply to all the 8 packages of XRA1402 and XRA1404: TABLE 3: COMMON JUMPER SETTINGS J8 Selects the supply voltage to generate the +1.8V power supply for the board 1&2 selects +5V (default, Pin 1 -- Test point for external +5V) 2&3 selects +P NOTE:. Trace between 1 & 2. J9 J13 Selects the supply voltage to generate the +2.5V power supply for the board Selects the supply voltage to generate the +3.3V power supply for the board 1&2 selects +5V (default) 2&3 selects +P NOTE:. Trace between 1 & 2. 1&2 selects +5V (default) 2&3 selects +P NOTE:. Trace between 1 & 2. J10 Selects the supply voltage for +VDDP Used only for the XRA1404 Jumper in 1&2 selects +3.3V Jumper in 3&4 selects +2.5V Jumper in 5&6 selects +1.8V J11 Selects the supply voltage for +VDD Jumper in 1&2 selects +3.3V (default) Jumper in 3&4 selects +2.5V Jumper in 5&6 selects +1.8V J12 Not used for XRA140x Installed but not used J14 Not used for XRA140x Installed but not used J6 Not used Installed but not used J34 LEDs NOTE:. Pin 2 is connected to GND. J1 Header for testing GPIOs of both TSSOP and QFN package J2 Header for internal test J5 J7 Header for XRA1402 and XRA1404 signals and spare signals Header for UART signals and spare signals Installed. Connect to external input/output after removing jumpers on J41 and J42. Installed. Connect SPI signals from this header to MCU.. Some GPIO signals and spare signals are accessible at this header 2
3 REV XRA1402/1404 EVALUATION BOARD USER S MANUAL XRA1402IL16-F The following jumpers apply to the XRA1402IL16-F: TABLE 4: JUMPER SETTINGS FOR XRA1402IL16-F J41 J42 J61 J62 J63 TSSOP package to LEDs QFN package Selects the supply voltage for +VDD for 16-pin QFN packages 15 of 16-pin QFN package 16 of 16-pin QFN package J64 1 of 16-pin QFN package J65 J66 J67 J68 13 of 16-pin QFN package Selects the supply voltage for +VDDP for 16-pin QFN packages 15 of 16-pin QFN package 16 of 16-pin QFN package 1&2 connects GPIO0 to LED - 0 ohm resistor on board 3&4 connects GPIO1 to LED - 0 ohm resistor on board 5&6 connects GPIO2 to LED - 0 ohm resistor on board 7&8 connects GPIO3 to LED - 0 ohm resistor on board 9&10 connects GPIO4 to LED - 0 ohm resistor on board 11&12 connects GPIO5 to LED - 0 ohm resistor on board 13&14 connects GPIO6 to LED - 0 ohm resistor on board 15&16 connects GPIO7 to LED - 0 ohm resistor on board Jumper in pin 1 & J41 pin 1 connects GPIO0 to LED Jumper in pin 2 & J41 pin 3 connects GPIO1 to LED Jumper in pin 3 & J41 pin 5 connects GPIO2 to LED Jumper in pin 4 & J41 pin 7 connects GPIO3 to LED Jumper in pin 5 & J41 pin 9 connects GPIO4 to LED Jumper in pin 6 & J41 pin 11 connects GPIO5 to LED Jumper in pin 7 & J41 pin 13 connects GPIO6 to LED Jumper in pin 8 & J41 pin 15 connects GPIO7 to LED Jumper in 2&4 selects +VDD (default) Jumper in 1&3 selects +VDD Jumper in 3&5 selects +VDD Jumper in 2&4 selects CS# signal (default) Jumper in 1&3 selects A0 signal Jumper in 3&5 selects A0 signal Jumper in 2&4 selects SI signal (default) Jumper in 1&3 selects A1 signal Jumper in 3&5 selects A1 signal Jumper in 2&4 selects RESET# signal (default) Jumper in 1&3 selects A2 signal Jumper in 3&5 selects RESET# signal Jumper in 2&4 selects SO signal (default) Jumper in 1&3 selects SDA signal Jumper in 3&5 selects SDA signal Installed but not used for XRA1402IL16-F Jumper in 1&2 selects +VDDP Jumper in 2&3 selects +VDDP Installed but not used for XRA1402IL16-F Jumper in 1&2 selects +VDD Jumper in 2&3 selects +VDD Installed but not used for XRA1402IL16-F Jumper in 1&2 selects A0 signal Jumper in 2&3 selects CS# signal 3
4 XRA1402/1404 EVALUATION BOARD USER S MANUAL REV TABLE 4: JUMPER SETTINGS FOR XRA1402IL16-F J69 1 of 16-pin QFN package J70 J49, J50, J51, J52, J53, J54, J55, J56, J57, J58 13 of 16-pin QFN package Not used for XRA1402IL16-F Installed but not used for XRA1402IL16-F Jumper in 1&2 selects RESET# signal Jumper in 2&3 selects SI signal Installed but not used for XRA1402IL16-F Jumper in 1&2 selects SDA signal Jumper in 2&3 selects SO signal 4
5 REV XRA1402/1404 EVALUATION BOARD USER S MANUAL XRA1402IG16-F The following jumpers apply to the XR1402IG16-F: TABLE 5: JUMPER SETTINGS FOR XRA1402IG16-F J41 J42 J49 TSSOP package to LEDs QFN package Selects the supply voltage for +VDD for 16-pin TSSOP packages J50 1 J51 2 J52 3 J53 J54 15 Selects the supply voltage for +VDDP for 16-pin TSSOP packages J55 1 J56 2 J57 3 Jumper in 1&2 connects GPIO0 to LED Jumper in 3&4 connects GPIO1 to LED Jumper in 5&6 connects GPIO2 to LED Jumper in 7&8 connects GPIO3 to LED Jumper in 9&10 connects GPIO4 to LED Jumper in 11&12 connects GPIO5 to LED Jumper in 13&14 connects GPIO6 to LED Jumper in 15&16 connects GPIO7 to LED Jumper in 2&4 selects +VDD (default) Jumper in 1&3 selects +VDD Jumper in 3&5 selects +VDD Jumper in 2&4 selects CS# signal (default) Jumper in 1&3 selects A0 signal Jumper in 3&5 selects A0 signal Jumper in 2&4 selects SI signal (default) Jumper in 1&3 selects A1 signal Jumper in 3&5 selects A1 signal Jumper in 2&4 selects RESET# signal (default) Jumper in 1&3 selects A2 signal Jumper in 3&5 selects RESET# signal Jumper in 2&4 selects SO signal (default) Jumper in 1&3 selects SDA signal Jumper in 3&5 selects SDA signal Installed but not used for XRA1402IG16-F Jumper in 1&2 selects +VDDP Jumper in 2&3 selects +VDDP Installed but not used for XRA1402IG16-F Jumper in 1&2 selects +VDD Jumper in 2&3 selects +VDD Installed but not used for XRA1402IG16-F Jumper in 1&2 selects A0 signal Jumper in 2&3 selects CS# signal Installed but not used for XRA1402IG16-F Jumper in 1&2 selects RESET# signal Jumper in 2&3 selects SI signal 5
6 XRA1402/1404 EVALUATION BOARD USER S MANUAL REV TABLE 5: JUMPER SETTINGS FOR XRA1402IG16-F J58 J61, J62, J63, J64, J65, J66, J67, J68, J69, J70 15 Not used for XRA1402IG16-F Installed but not used for XRA1402IG16-F Jumper in 1&2 selects SDA signal Jumper in 2&3 selects SO signal 6
7 REV XRA1402/1404 EVALUATION BOARD USER S MANUAL XRA1404IL16-F The following jumpers apply to the XRA1404IL16-F: TABLE 6: JUMPER SETTINGS FOR XRA1404IL16-F J41 J42 J61 J62 J63 TSSOP package to LEDs QFN package Selects the supply voltage for +VDD for 16-pin QFN packages 15 of 16-pin QFN package 16 of 16-pin QFN package J64 1 of 16-pin QFN package J65 J66 J67 J68 13 of 16-pin QFN package Selects the supply voltage for +VDDP for 16-pin QFN packages 15 of 16-pin QFN package 16 of 16-pin QFN package 1&2 connects GPIO0 to LED - 0 ohm resistor on board 3&4 connects GPIO1 to LED - 0 ohm resistor on board 5&6 connects GPIO2 to LED - 0 ohm resistor on board 7&8 connects GPIO3 to LED - 0 ohm resistor on board 9&10 connects GPIO4 to LED - 0 ohm resistor on board 11&12 connects GPIO5 to LED - 0 ohm resistor on board 13&14 connects GPIO6 to LED - 0 ohm resistor on board 15&16 connects GPIO7 to LED - 0 ohm resistor on board Jumper in pin 1 & J41 pin 1 connects GPIO0 to LED Jumper in pin 2 & J41 pin 3 connects GPIO1 to LED Jumper in pin 3 & J41 pin 5 connects GPIO2 to LED Jumper in pin 4 & J41 pin 7 connects GPIO3 to LED Jumper in pin 5 & J41 pin 9 connects GPIO4 to LED Jumper in pin 6 & J41 pin 11 connects GPIO5 to LED Jumper in pin 7 & J41 pin 13 connects GPIO6 to LED Jumper in pin 8 & J41 pin 15 connects GPIO7 to LED Installed but not used for XRA1404IL16-F Jumper in 1&3 selects +VDD Jumper in 3&5 selects +VDD Jumper in 2&4 selects +VDD Installed but not used for XRA1404IL16-F Jumper in 1&3 selects A0 signal Jumper in 3&5 selects A0 signal Jumper in 2&4 selects CS# signal Installed but not used for XRA1404IL16-F Jumper in 1&3 selects A1 signal Jumper in 3&5 selects A1 signal Jumper in 2&4 selects SI signal Installed but not used for XRA1404IL16-F Jumper in 1&3 selects A2 signal Jumper in 3&5 selects RESET# signal Jumper in 2&4 selects RESET# signal Installed but not used for XRA1404IL16-F Jumper in 1&3 selects SDA signal Jumper in 3&5 selects SDA signal Jumper in 2&4 selects SO signal Jumper in 2&3 selects +VDDP (default) Jumper in 1&2 selects +VDDP Jumper in 2&3 selects +VDD (default) Jumper in 1&2 selects +VDD Jumper in 2&3 selects CS# signal (default) Jumper in 1&2 selects A0 signal 7
8 XRA1402/1404 EVALUATION BOARD USER S MANUAL REV TABLE 6: JUMPER SETTINGS FOR XRA1404IL16-F J69 1 of 16-pin QFN package J70 J49, J50, J51, J52, J53, J54, J55, J56, J57, J58 13 of 16-pin QFN package Not used for XRA1404IL16-F Jumper in 2&3 selects SI signal (default) Jumper in 1&2 selects RESET# signal Jumper in 2&3 selects SO signal (default) Jumper in 1&2 selects SDA signal 8
9 REV XRA1402/1404 EVALUATION BOARD USER S MANUAL XRA1404IG16-F The following jumpers apply to the XR1404IG16-F: TABLE 7: JUMPER SETTINGS FOR XRA1404IG16-F J41 J42 J49 TSSOP package to LEDs QFN package Selects the supply voltage for +VDD for 16-pin TSSOP packages J50 1 J51 2 J52 3 J53 J54 15 Selects the supply voltage for +VDDP for 16-pin TSSOP packages J55 1 J56 2 J57 3 Jumper in 1&2 connects GPIO0 to LED Jumper in 3&4 connects GPIO1 to LED Jumper in 5&6 connects GPIO2 to LED Jumper in 7&8 connects GPIO3 to LED Jumper in 9&10 connects GPIO4 to LED Jumper in 11&12 connects GPIO5 to LED Jumper in 13&14 connects GPIO6 to LED Jumper in 15&16 connects GPIO7 to LED Installed but not used for XRA1404IG16-F Jumper in 1&3 selects +VDD Jumper in 3&5 selects +VDD Jumper in 2&4 selects +VDD Installed but not used for XRA1404IG16-F Jumper in 1&3 selects A0 signal Jumper in 3&5 selects A0 signal Jumper in 2&4 selects CS# signal Installed but not used for XRA1404IG16-F Jumper in 1&3 selects A1 signal Jumper in 3&5 selects A1 signal Jumper in 2&4 selects SI signal Installed but not used for XRA1404IG16-F Jumper in 1&3 selects A2 signal Jumper in 3&5 selects RESET# signal Jumper in 2&4 selects RESET# signal Installed but not used for XRA1404IG16-F Jumper in 1&3 selects SDA signal Jumper in 3&5 selects SDA signal Jumper in 2&4 selects SO signal Jumper in 2&3 selects +VDDP (default) Jumper in 1&2 selects +VDDP Jumper in 2&3 selects +VDD (default) Jumper in 1&2 selects +VDD Jumper in 2&3 selects CS# signal (default) Jumper in 1&2 selects A0 signal Jumper in 2&3 selects SI signal (default) Jumper in 1&2 selects RESET# signal 9
10 XRA1402/1404 EVALUATION BOARD USER S MANUAL REV TABLE 7: JUMPER SETTINGS FOR XRA1404IG16-F J58 J61, J62, J63, J64, J65, J66, J67, J68, J69, J70 15 Not used for XRA1404IG16-F Jumper in 2&3 selects SO signal (default) Jumper in 1&2 selects SDA signal 3.0 TECHNICAL SUPPORT If there are any questions, please send an to uarttechsupport@exar.com. NOTICE EXAR Corporation reserves the right to make changes 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 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. 10
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