atr0621-ek1 ATMEL Corporation, atr0621-ek1 Datasheet - Page 15

• Manufacturer Part Number: atr0621-ek1
• Description: Atr0622p Gps Baseband Processor
• Manufacturer: ATMEL Corporation

Table 3-15.
4891F–GPS–09/07
Pin Name
P0/NANTSHORT
P1/GPSMODE0
P2/BOOT_MODE
P8/STATUSLED
P9/EXTINT0
P12/GPSMODE2/NPCS2
P13/GPSMODE3/
EXTINT1
P14/NAADET1
P15/ANTON
P16/NEEPROM
P17/GPSMODE5/SCK1
P18/TXD1
P19/GPSMODE6/SIGLO1
P20/TIMEPULSE/SCK2
P21/TXD2
P22/RXD2
P23/GPSMODE7/SCK
P24/GPSMODE8/MOSI
P25/NAADET0/MISO
P26/GPSMODE10/NSS/
NPCS0
P27/GPSMODE11/NPCS1
P29/GPSMODE12/NPCS3
P30/AGCOUT0
P31/RXD1
Recommended Pin Connection
Recommended External Circuit
Internal pull-down resistor, leave open if Antenna Supervision functionality is unused.
Internal pull-down resistor, leave open, in order to disable the GPSMODE pin configuration feature. Connect
to VDD18 to enable the GPSMODE pin configuration feature. Refer to GPSMODE definitions in section
“Setting GPSMODE0 to GPSMODE12” on page
Internal pull-down resistor, leave open.
Output in default ROM firmware: leave open if not used.
Internal pull-up resistor, leave open if unused.
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Internal pull-down resistor, leave open if Antenna Supervision functionality is unused.
Internal pull-down resistor, leave open if Antenna Supervision functionality is unused.
Internal pull-up resistor, leave open if no serial EEPROM is connected. Otherwise connect to GND.
Internal pull-down resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Output in default ROM firmware: leave open if serial interface is not used.
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Output in default ROM firmware: leave open if timepulse feature is not used.
Output in default ROM firmware: leave open if serial interface not used.
Internal pull-up resistor, leave open if serial interface is not used.
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Internal pull-down resistor, leave open if Antenna Supervision functionality is unused.
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Internal pull-up resistor, can be left open if the GPSMODE feature is not used. Refer to GPSMODE
definitions in section
Internal pull-down resistor, leave open.
Internal pull-up resistor, leave open if serial interface is not used.
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
“Setting GPSMODE0 to GPSMODE12” on page
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ATR0622P
15