ATR0621P1 Datasheet, PDF (11/14 Pages) ATMEL Corporation – GPS Baseband Processor

3.3 External Connections for a Working GPS System
Figure 3-2. Example of an External Connection
ATR0601
SIGH
SIGL
SC
PuRF
PuXTO
NC
see Table 3-15
NC
SIGHI
SIGLO
CLK23
RF_ON
NSLEEP
NRESET
ATR0621P1
P8
P20
EM_DA0 - 15
EM_A1 - 19
USB_DM
USB_DP
see Table 3-15
see Table 3-15
see Table 3-15
see Table 3-15
see Table 3-15
NC
NC
NC
NC
NC
P0 - 7
P9 - 15
P16 - 17
P19
P23 - 30
TMS
TCK
TDI
NTRST
TDO
P31
P18
P22
P21
XT_IN
XT_OUT
NC
DBG_EN
GND
+3V
(see Power Supply)
GND
+3V
(see Power Supply)
GND
NSHDN
LDO_EN
LDO_OUT
VDD18
LDO_IN
LDOBAT_IN
VBAT18
VBAT
VDDIO
VDD_USB
NC: Not connected
ATR0621P1
STATUS LED
TIMEPULSE
Optional
USB
Optional
USART 1
Optional
USART 2
32.368 kHz
(see RTC)
+3V
(see Power Supply)
+3V
(see Power Supply)
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4975BS–GPS–05/08