User's Manual

GE/GC864-QUAD V2 and GE864-GPS Hardware User Guide
1vv0300915 Rev.2 – 2011-06-15
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Reserved. Page 59 of 97
Operating Range – Interface levels (2.8V CMOS)
GPS signals
Level
Min
Max
Min
Max
Input high
level
2.1V 3.1V 1.82V 2.8V
Input low level 0V 0.5V 0V 0.98V
Output high
level
2.2V 3.0V 2.4V
Output low
level
0V 0.35V 0.4V
The table below shows the signals of the GE/GC864-QUAD V2 AND
GE864-GPSserial port:
RS232
Pin
Number
Signal
GE864
-
QUAD V2
Pad Number
GC864
-
QUAD V2
Pad Number
Name
Usage
1
DCD –
dcd_uart
D9 32 Data Carrier Detect
Output from the GE864-QUAD
V2 that indicates the
carrier presence
2
RXD –
tx_uart
H8 26
Transmit line
*see Note
Output transmit line of
GE864-QUAD V2 UART
3
TXD –
rx_uart
E7 25
Receive line
*see Note
Input receive of the GE864-
QUAD V2 UART
4
DTR –
dtr_uart
B7 29 Data Terminal Ready
Input to the GE864-QUAD V2
that controls the DTE READY
condition
5 GND
A1,F1, H1 L1,
H2, L2, J3, K3….
5,6,7 Ground ground
6
DSR –
dsr_uart
E11 27 Data Set Ready
Output from the GE864-QUAD
V2 that indicates the
module is ready
7
RTS –
rts_uart
F7 31 Request to Send
Input to the GE864-QUAD V2
that controls the Hardware
flow control
8
CTS –
cts_uart
F6 28 Clear to Send
Output from the GE864-QUAD
V2 that controls the
Hardware flow control
9
RI –
ri_uart
B6 30 Ring Indicator
Output from the GE864-QUAD
V2 that indicates the
incoming call condition