2007-11-19
Page 17 of 35
IT321_Tech_doc_12
11 GND
- -
Ground
12
TSYNC
I/O
GPIO8
Option for Timing pulse input in A-
GPS version. Pull low when not
used with e.g. 10kohm. VCC=1.8V.
13
GPIO2
I
-
Control input for protocol configura-
tion. VCC=1.8V. For default pull
low.
14 GND
- -
Ground
15
GPIO1
O
-
Valid fix indicator output. Can be
left unconnected. VCC=1.8V
16
ECLK
I
-
Option for external clock input in A-
GPS version. Pull low state with
e.g. 10kohm if not used.
VCC=1.8V.
17 GND
- -
Ground
18
RXA
I
-
UART A async. Input. Has internal
pull up resistor 100kohm.
VCC=1.8V.
19
TXA
O
-
UART A async. Output. VCC=1.8V.
20
PPS
O
-
1PPS signal output. VCC=1.8V.
21 GND
- -
Ground
22
BOOT2
I
-
BOOT select 2. Can be left uncon-
nected with ROM version.
With flash version connect to
BOOT1 signal and pull low with
R<5kohm. Has internal pull up re-
sistor 100kohm. VCC=1.8V.
23 GND
- -
Ground
24 GND
- -
Ground
Contact Signal
name
I/O Alternative
signal name
Signal description
Summary of Contents for IT321
Page 15: ...2007 11 19 Page 15 of 35 IT321_Tech_doc_12 Figure 2 SiRFFlash utility settings...
Page 25: ...2007 11 19 Page 25 of 35 IT321_Tech_doc_12 Figure 7 Tape and reel specification...
Page 32: ...2007 11 19 Page 32 of 35 IT321_Tech_doc_12 7 3 Circuit drawing rev C...
Page 34: ...2007 11 19 Page 34 of 35 IT321_Tech_doc_12 7 6 Artwork layer 2 rev C 7 7 Artwork layer 3 rev C...
Page 35: ...2007 11 19 Page 35 of 35 IT321_Tech_doc_12 7 8 Artwork layer 4 Bottom rev C...
