ATR0635_08 Datasheet, PDF (3/35 Pages) ATMEL Corporation – ANTARIS4 Single-chip GPS Receiver SuperSense

2. Architectural Overview
2.1 Block Diagram
Figure 2-1. ATR0635 Block Diagram
PUXTO
PURF
VDD18
VDDIO
VDD_USB
VDIG
VCC1
VCC2
VBP
TEST
MO
RF
NRF
XTO
NXTO
X
NX
RF_ON
NSHDN
NSLEEP
XT_IN
XT_OUT
P20/TIMEPULSE
P29/GPSMODE12
P27/GPSMODE11
P26/GPSMODE10
P24/GPSMODE8
P23/GPSMODE7
P19/GPSMODE6
P17/GPSMODE5
P13/GPSMODE3
P12/GPSMODE2
P1/GPSMODE0
P14/NAADET1
P25/NAADET0
P15/ANTON
P0/NANTSHORT
P9/EXTINT0
P16/NEEPROM
VCO
PLL
XTO
Power Supply Manager/
PMSS/Logic
1
A
D
A
D
P8/STATUSLED
P30/AGCOUT0
P2/BOOT_MODE
4928H–GPS–06/08
DBG_EN
NTRST
TDI
TDO
TCK
TMS
ATR0635
VBAT18
VBAT
LDOBAT_IN
LDO_OUT
LDO_IN
LDO_EN
AGCO
EGC
SDI
SIGHI
SIGLO
CLK23
P21/TXD2
P22/RXD2
P18/TXD1
P31/RXD1
USB_DP
USB_DM
NRESET
3