Sony Ericsson GR64 User Manual
Page 32
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5.2 Dealing with Unused pins
Integrators applications may connect all of the GR64 signals pins, or just those
necessary for minimal operation, or most commonly some other permutation. If
GR64 signal pins are not connected to the host application you should terminate
them in the following manner.
Table 5.2-1 Unused Pin Termination
Pin
Name
Unused pin termination
1, 3, 5, 7, 9
VCC
Must be connected
2, 4, 6, 8, 10, 12 GND
Must be connected
11 CHG_IN
Leave
Open
13 ADIN4/GPIO5
Ground
14
ON/OFF
Must be connected
15 SIMVCC
Leave
Open
16 SIMDET
Leave
Open
17 SIMRST
Leave
Open
18 SIMDAT
Leave
Open
19 SIMCLK
Leave
Open
20 DAC
Leave
Open
21 GPIO1
Connect
to
VREF
22 GPIO2
Connect
to
VREF
23 GPIO3
Connect
to
VREF
24 GPIO4
Connect
to
VREF
25 VRTC
Leave
Open
26 ADIN1
Ground
27 ADIN2
Ground
28 ADIN3
Ground
29 SDA
Leave
Open
30 SCL
Leave
Open
31 BUZZER
Leave
Open
32 DSR1/GPIO7
Connect
to
VREF
33 LED/GPIO6
Connect
to
VREF
34
VREF
Must be connected
35 TX_ON
Leave
Open
36 RI/GPIO8
Connect
to
VREF
37 DTR1/GPIO10
Connect
to
VREF
38 DCD1/GPIO11
Connect
to
VREF
39 RTS1/GPIO9
Connect
to
VREF
40 CTS1/GPIO12
Connect
to
VREF
41 DTM1
Connect
to
VREF
42 DFM1
Leave
Open