Evaluation Board User`s Manual
Contents
1. Routing of modem signals to RS 232 Transceiver Jumper not installed Trace between 1 amp 2 Trace between 3 amp 4 Trace between 5 amp 6 Trace between 7 amp 8 For internal test only For internal test only Not installed 12C Address Select AO For 12C mode only one jumper should be selected m 1 amp 2 VCC See XR20V2170 datasheet for I2C addressing m 384 SCL For SPI mode jumper should be out m 5 amp 6 SDA m 7 amp 8 GND 12C Address Select A1 For 12C mode only one jumper should be selected m 1 amp 2 VCC See XR20V2170 datasheet for I2C addressing m 3 amp 4 SCL For SPI mode jumper should be out m 5 amp 6 SDA m 7 amp 8 GND 11 Powering Connectivity XR20M1170 EVALUATION BOARD USER S MANUAL REV 1 0 0 TABLE 7 JUMPER SETTINGS FOR XR20V21701L40 JUMPERS FUNCTIONS COMMENTS Header for connection to external microcontroller Ground and Power connections board m Pin 17 should be connected to GND m Pin 2 SDA signal for 2C interface m Pin 18 should be connected 3 3V m Pin 3 SO signal for SPI interface m Pin 4 IRQ output signal from XR20M1170 I 12C interface is used E Pin 13 AO signal for 1 C interface or CS for m Pin 2 should be connected to SDA SPI interface m Pin 4 should be connected to MCU interrupt Pin 14 A1 signal for I2C interface or SI for input if using interrupts SPI interface m Pin 13 should be unconnected when using J29 m Pin 15 RESET input signa2. Powering Connectivity REV 1 0 0 _ XR20M1170 EVALUATION BOARD USER S MANUAL INTRODUCTION This user s manual is for the XR20M1170 evaluation board Table 1 shows the different devices and packages that the evaluation board support This user s manual will describe the hardware setup required to operate the different packages 1 0 HARDWARE SETUP 1 1 Packages description Since the XR20M1170 evaluation board can be used for both the XR20M1170 and XR20V2170 Table 1 shows the different packages supported by the board TABLE 1 PACKAGE LIST PART NUMBER PACKAGE LOCATION XR20M11701L28 28 pin QFN XR20M11701L24 24 pin QFN XR20M11701L16 16 pin QFN XR20M11701G24 24 pin TSSOP XR20M11701G16 16 pin TSSOP XR20V21701L40 40 pin QFN 1 2 Jumper Settings 1 2 1 XR20M11701L28 The following jumpers apply to the XR20M1170IL28 TABLE 2 JUMPER SETTINGS FOR XR20M1170IL28 JUMPERS FUNCTIONS COMMENTS Selects between 12C and SPI mode Jumper in selects SPI mode Jumper out selects 12C mode Power for the RS 232 Transceiver Jumper in enables power for RS 232 Transceiver Jumper out disables power for RS 232 Transceiver Routing of modem signals to RS 232 Transceiver Jumper not installed Trace between 1 amp 2 Trace between 3 amp 4 Trace between 5 amp 6 Trace between 7 amp 8 For internal test only For internal test only Not installed 12C Address Select AO For I2C mode only one jumper should be
3. SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one jumper should be selected See XR20M1170 datasheet for I2C addressing For SPI mode jumper should be out 12C Address Select A1 m 1 amp 2 VCC m 384 SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one jumper should be selected See XR20M1170 datasheet for 1 C addressing For SPI mode jumper should be out XR20M1170 EVALUATION BOARD USER S MANUAL TABLE 3 JUMPER SETTINGS FOR XR20M11701L24 JUMPERS FUNCTIONS Powering Connectivity REV 1 0 0 COMMENTS J13 Header for connection to external microcontroller Ground and Power connections board m Pin 17 should be connected to GND m Pin 2 SDA signal for 2C interface m Pin 18 should be connected 3 3V m Pin 3 SO signal for SPI interface m Pin 4 IRQ output signal from XR20M1170 I 12C interface is used m Pin 13 AO signal for IC interface or CS for m Pin 2 should be connected to SDA SPI interface m Pin 4 should be connected to MCU interrupt m Pin 14 A1 signal for IC interface or SI for input if using interrupts SPI interface m Pin 13 should be unconnected when using J29 m Pin 15 RESET input signal m Pin 14 should be unconnected when using J30 m Pin 16 SCL signal for I2C interface or SCK m Pin 15 should be connected to reset output from for SPI interface MCU m Pin 17 GND signal m Pin 16 should be connected to SCL m Pin 18 External power for XR20M1170 and If SPI
4. 6 JUMPER SETTINGS FOR XR20M1170IG16 JUMPERS FUNCTIONS J25 Selects between 12C and SPI mode Power for the RS 232 Transceiver COMMENTS Jumper in selects SPI mode Jumper out selects 12C mode Jumper in enables power for RS 232 Transceiver Jumper out disables power for RS 232 Transceiver Routing of modem signals to RS 232 Transceiver Jumper not installed Trace between 1 amp 2 Trace between 3 amp 4 Trace between 5 amp 6 Trace between 7 amp 8 For internal test only For internal test only Not installed 12C Address Select A0 m 1 amp 2 VCC m 384 SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one jumper should be selected See XR20M1170 datasheet for I2C addressing For SPI mode jumper should be out 12C Address Select A1 m 1 amp 2 VCC m 384 SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one jumper should be selected See XR20M1170 datasheet for 1 C addressing For SPI mode jumper should be out XR20M1170 EVALUATION BOARD USER S MANUAL TABLE 6 JUMPER SETTINGS FOR XR20M1170IG16 JUMPERS FUNCTIONS Powering Connectivity REV 1 0 0 COMMENTS J13 Header for connection to external microcontroller Ground and Power connections board m Pin 17 should be connected to GND m Pin 2 SDA signal for 2C interface m Pin 18 should be connected 3 3V m Pin 3 SO signal for SPI interface m Pin 4 IRQ output signal from XR20M1170 I 12C interfac
5. selected m 1 amp 2 VCC See XR20M1170 datasheet for I2C addressing m 384 SCL For SPI mode jumper should be out m 5 amp 6 SDA m 7 amp 8 GND Powering Connectivity XR20M1170 EVALUATION BOARD USER S MANUAL REV 1 0 0 TABLE 2 JUMPER SETTINGS FOR XR20M1170IL28 JUMPERS FUNCTIONS COMMENTS 12C Address Select A1 For 2C mode only one jumper should be selected m 1 amp 2 VCC See XR20M1170 datasheet for 2C addressing m 384 SCL For SPI mode jumper should be out m 5 amp 6 SDA m 7 amp 8 GND Header for connection to external microcontroller Ground and Power connections board m Pin 17 should be connected to GND m Pin 2 SDA signal for 12C interface m Pin 18 should be connected 3 3V m Pin 3 SO signal for SPI interface m Pin 4 IRQ output signal from XR20M1170 lif 12C interface is used C Pin 13 AO signal for 1 C interface or CS for m Pin 2 should be connected to SDA SPI interface m Pin 4 should be connected to MCU interrupt Pin 14 A1 signal for I2C interface or SI for input if using interrupts SPI interface m Pin 13 should be unconnected when using J29 m Pin 15 RESET input signal m Pin 14 should be unconnected when using J30 m Pin 16 SCL signal for I2C interface or SCK m Pin 15 should be connected to reset output from for SPI interface MCU Pin 17 GND signal m Pin 16 should be connected to SCL Pin 18 External power for XR20M1170 and If SPI interface is used aces Mele esWer m Pi
6. should be connected to SCK J23 Power supply for the XR20M11701G24 Jumper not installed Trace between 1 amp 2 Powering Connectivity REV 1 0 0 XR20M1170 EVALUATION BOARD USER S MANUAL 1 2 4 XR20M11701L16 The following jumpers apply to the XR20M1170IL16 TABLE 5 JUMPER SETTINGS FOR XR20M1170IL16 PACKAGE JUMPERS FUNCTIONS J25 Selects between 12C and SPI mode Power for the RS 232 Transceiver COMMENTS Jumper in selects SPI mode Jumper out selects 12C mode Jumper in enables power for RS 232 Transceiver Jumper out disables power for RS 232 Transceiver Routing of modem signals to RS 232 Transceiver Jumper not installed Trace between 1 amp 2 Trace between 3 amp 4 Trace between 5 amp 6 Trace between 7 amp 8 For internal test only For internal test only Not installed 12C Address Select A0 m 1 amp 2 VCC m 384 SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one jumper should be selected See XR20M1170 datasheet for I2C addressing For SPI mode jumper should be out 12C Address Select A1 m 1 amp 2 VCC m 384 SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one jumper should be selected See XR20M1170 datasheet for 1 C addressing For SPI mode jumper should be out XR20M1170 EVALUATION BOARD USER S MANUAL TABLE 5 JUMPER SETTINGS FOR XR20M1170IL16 PACKAGE JUMPERS FUNCTIONS Powering Connectivity REV 1 0 0 COMMENTS J
7. 13 Header for connection to external microcontroller Ground and Power connections board m Pin 17 should be connected to GND m Pin 2 SDA signal for 2C interface m Pin 18 should be connected 3 3V m Pin 3 SO signal for SPI interface m Pin 4 IRQ output signal from XR20M1170 I 12C interface is used m Pin 13 AO signal for IC interface or CS for m Pin 2 should be connected to SDA SPI interface m Pin 4 should be connected to MCU interrupt m Pin 14 A1 signal for IC interface or SI for input if using interrupts SPI interface m Pin 13 should be unconnected when using J29 m Pin 15 RESET input signal m Pin 14 should be unconnected when using J30 m Pin 16 SCL signal for I2C interface or SCK m Pin 15 should be connected to reset output from for SPI interface MCU m Pin 17 GND signal m Pin 16 should be connected to SCL m Pin 18 External power for XR20M1170 and If SPI interface is used R9232 Mansel m Pin 2 should be unconnected m Pin 3 should be connected to SO m Pin 4 should be connected to MCU interrupt i using interrupts m Pin 13 should be connected to CS m Pin 14 should be connected to SI m Pin 15 should be connected to reset output from MCU m Pin 16 should be connected to SCK J15 Power supply for the XR20M11701L16 Jumper not installed Trace between 1 amp 2 Powering Connectivity REV 1 0 0 XR20M1170 EVALUATION BOARD USER S MANUAL 1 2 5 XR20M11701IG16 The following jumpers apply to the XR20M1170IG16 TABLE
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9. e is used m Pin 13 AO signal for IC interface or CS for m Pin 2 should be connected to SDA SPI interface m Pin 4 should be connected to MCU interrupt m Pin 14 A1 signal for IC interface or SI for input if using interrupts SPI interface m Pin 13 should be unconnected when using J29 m Pin 15 RESET input signal m Pin 14 should be unconnected when using J30 m Pin 16 SCL signal for I2C interface or SCK m Pin 15 should be connected to reset output from for SPI interface MCU m Pin 17 GND signal m Pin 16 should be connected to SCL m Pin 18 External power for XR20M1170 and If SPI interface is used R9232 Mansel m Pin 2 should be unconnected m Pin 3 should be connected to SO m Pin 4 should be connected to MCU interrupt i using interrupts m Pin 13 should be connected to CS m Pin 14 should be connected to SI m Pin 15 should be connected to reset output from MCU m Pin 16 should be connected to SCK J22 Power supply for the XR20M11701G16 Jumper not installed 10 Trace between 1 amp 2 Powering Connectivity REV 1 0 0 XR20M1170 EVALUATION BOARD USER S MANUAL 1 2 6 XR20V21701L40 The following jumpers apply to the XR20V2170IL40 TABLE 7 JUMPER SETTINGS FOR XR20V21701L40 JUMPERS FUNCTIONS COMMENTS J25 Selects between I2C and SPI mode Jumper in selects SPI mode Jumper out selects 12C mode Power for the RS 232 Transceiver Jumper in enables power for RS 232 Transceiver Jumper out disables power for RS 232 Transceiver
10. interface is used R9232 Mansel m Pin 2 should be unconnected m Pin 3 should be connected to SO m Pin 4 should be connected to MCU interrupt i using interrupts m Pin 13 should be connected to CS m Pin 14 should be connected to SI m Pin 15 should be connected to reset output from MCU m Pin 16 should be connected to SCK J8 Power supply for the XR20M1170IL24 Jumper not installed Trace between 1 amp 2 Powering Connectivity REV 1 0 0 XR20M1170 EVALUATION BOARD USER S MANUAL 1 2 3 XR20M11701IG24 The following jumpers apply to the XR20M1170IG24 TABLE 4 JUMPER SETTINGS FOR XR20M1170IG24 JUMPERS FUNCTIONS J25 Selects between 12C and SPI mode Power for the RS 232 Transceiver COMMENTS Jumper in selects SPI mode Jumper out selects 12C mode Jumper in enables power for RS 232 Transceiver Jumper out disables power for RS 232 Transceiver Routing of modem signals to RS 232 Transceiver Jumper not installed Trace between 1 amp 2 Trace between 3 amp 4 Trace between 5 amp 6 Trace between 7 amp 8 For internal test only For internal test only Not installed 12C Address Select A0 m 1 amp 2 VCC m 384 SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one jumper should be selected See XR20M1170 datasheet for I2C addressing For SPI mode jumper should be out 12C Address Select A1 m 1 amp 2 VCC m 384 SCL m 5 amp 6 SDA m 7 amp 8 GND For 12C mode only one ju
11. l m Pin 14 should be unconnected when using J30 m Pin 16 SCL signal for I2C interface or SCK m Pin 15 should be connected to reset output from for SPI interface MCU Pin 17 GND signal m Pin 16 should be connected to SCL Pin 18 External power for XR20M1170 and If SPI interface is used Ronee Wanecsiier m Pin 2 should be unconnected m Pin 3 should be connected to SO m Pin 4 should be connected to MCU interrupt i using interrupts m Pin 13 should be connected to CS m Pin 14 should be connected to SI m Pin 15 should be connected to reset output from MCU m Pin 16 should be connected to SCK Power supply for the XR20V2170IL40 Jumper not installed Trace between 1 amp 2 Enable Disable autosleep for charge pump Jumper in enables autosleep for charge pump Jumper out disables autosleep for charge pump Enable Disable UART side external loopback Jumper in enables UART side external loopback Jumper out disables UART side external loopback 2 0 DRIVERS For the I2C SPI UART driver it is recommended that you contact your microcontroller vendor first for sample code to access devices on the 1 C or SPI bus Once you can access devices on the 1 C or SPI bus you can use the sample code from EXAR for initializing the I2C SPI UART as a reference for devoloping your driver 3 0 SAMPLE INITIALIZATION ROUTINE AND SUPPORT For a sample initialization routine or if there are any questions send an e mail to uarttechsupport exa
12. mper should be selected See XR20M1170 datasheet for 1 C addressing For SPI mode jumper should be out XR20M1170 EVALUATION BOARD USER S MANUAL TABLE 4 JUMPER SETTINGS FOR XR20M11701G24 JUMPERS FUNCTIONS Powering Connectivity REV 1 0 0 COMMENTS J13 Header for connection to external microcontroller Ground and Power connections board m Pin 17 should be connected to GND m Pin 2 SDA signal for 2C interface m Pin 18 should be connected 3 3V m Pin 3 SO signal for SPI interface m Pin 4 IRQ output signal from XR20M1170 I 12C interface is used m Pin 13 AO signal for IC interface or CS for m Pin 2 should be connected to SDA SPI interface m Pin 4 should be connected to MCU interrupt m Pin 14 A1 signal for IC interface or SI for input if using interrupts SPI interface m Pin 13 should be unconnected when using J29 m Pin 15 RESET input signal m Pin 14 should be unconnected when using J30 m Pin 16 SCL signal for I2C interface or SCK m Pin 15 should be connected to reset output from for SPI interface MCU m Pin 17 GND signal m Pin 16 should be connected to SCL m Pin 18 External power for XR20M1170 and If SPI interface is used R9232 Mansel m Pin 2 should be unconnected m Pin 3 should be connected to SO m Pin 4 should be connected to MCU interrupt i using interrupts m Pin 13 should be connected to CS m Pin 14 should be connected to SI m Pin 15 should be connected to reset output from MCU m Pin 16
13. n 2 should be unconnected m Pin 3 should be connected to SO m Pin 4 should be connected to MCU interrupt i using interrupts m Pin 13 should be connected to CS m Pin 14 should be connected to SI m Pin 15 should be connected to reset output from MCU m Pin 16 should be connected to SCK Power supply for the XR20M1170IL28 Jumper not installed Trace between 1 amp 2 Enable Disable RS 485 feature Jumper in enables RS 485 mode Jumper out disables RS 485 mode Enable Disable IR feature Jumper in enables IR mode Jumper out disables IR mode Enable Disable UART side external loopback Jumper in enables UART side external loopback Jumper out disables UART side external loopback Powering Connectivity REV 1 0 0 XR20M1170 EVALUATION BOARD USER S MANUAL 1 2 2 XR20M1170IL24 The following jumpers apply to the XR20M1170IL24 TABLE 3 JUMPER SETTINGS FOR XR20M11701L24 JUMPERS FUNCTIONS J25 Selects between 12C and SPI mode Power for the RS 232 Transceiver COMMENTS Jumper in selects SPI mode Jumper out selects 12C mode Jumper in enables power for RS 232 Transceiver Jumper out disables power for RS 232 Transceiver Routing of modem signals to RS 232 Transceiver Jumper not installed Trace between 1 amp 2 Trace between 3 amp 4 Trace between 5 amp 6 Trace between 7 amp 8 For internal test only For internal test only Not installed 12C Address Select A0 m 1 amp 2 VCC m 384
14. r com 12 Powering Connectivity REV 1 0 0 XR20M1170 EVALUATION BOARD USER S MANUAL 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 2007 EXAR Corporation Datasheet September 2007 Send your UART technical inquiry with technical details to hotline uarttechsupport ex
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