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ATR0625-DK1 Datasheet(PDF) 7 Page - ATMEL Corporation |
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ATR0625-DK1 Datasheet(HTML) 7 Page - ATMEL Corporation |
7 / 27 page 7 4925G–GPS–06/08 ATR0625P 3.2 Signal Description Table 3-2. ATR0625P Signal Description Module Name Function Type Active Level Comment EBI BOOT_MODE Boot Mode Input Input – PIO-controlled after reset, internal pull-down resistor USART TXD1 to TXD2 Transmit Data Output Output – PIO-controlled after reset RXD1 to RXD2 Receive Data Input Input – PIO-controlled after reset SCK1 to SCK2 External Synchronous Serial Clock I/O – PIO-controlled after reset USB USB_DP USB Data (D+) I/O – USB_DM USB Data (D-) I/O – APMC RF_ON Output – Interface to ATR0601 AIC EXTINT0-1 External Interrupt Request Input High/ Low/ Edge PIO-controlled after reset AGC AGCOUT0-1 Automatic Gain Control Output – Interface to ATR0601 PIO-controlled after reset RTC NSLEEP Sleep Output Output Low Interface to ATR0601 NSHDN Shutdown Output Output Low Connect to pin LDO_EN XT_IN Oscillator Input Input – RTC oscillator XT_OUT Oscillator Output Output – RTC oscillator SPI SCK SPI Clock I/O – PIO-controlled after reset MOSI Master Out Slave In I/O – PIO-controlled after reset MISO Master In Slave Out I/O – PIO-controlled after reset NSS/NPCS0 Slave Select I/O Low PIO-controlled after reset NPCS1 to NPCS3 Slave Select Output Low PIO-controlled after reset PIO P0 to P31 Programmable I/O Port I/O – Input after reset GPS SIGHI0 Digital IF Input – Interface to ATR0601 SIGLO0 Digital IF Input – Interface to ATR0601 SIGHI1 Digital IF Input – PIO-controlled after reset SIGLO1 Digital IF Input – PIO-controlled after reset TIMEPULSE GPS synchronized time pulse Output – PIO-controlled after reset CONFIG GPSMODE0-12 GPS Mode Input – PIO-controlled after reset STATUSLED Status LED Output – PIO-controlled after reset NEEPROM Enable EEPROM Support Input Low PIO-controlled after reset ANTON Active antenna power on Output Output – PIO-controlled after reset NANTSHORT Active antenna short circuit detection Input Input Low PIO-controlled after reset NAADET0-1 Active antenna detection Input Input Low PIO-controlled after reset Note: 1. The USB transceiver is disabled if VDD_USB < 2.0V. In this case the pins USB_DM and USB_DP are connected to GND (internal pull-down resistors). The USB transceiver is enabled if VDD_USB is within 3.0V and 3.6V. |
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