http://cxema.ru
I/O pin Assignments
Signal
GEMINI Pin
Use
Signal
IO (5) /EXTINT
109
EXTINT
IO (6) / nRESETOUT
106
PA_LOW
H = Low RF Power level
L = High RF power level
IO (7) / SIM_RnW
105
CHARGE_LED
L = Charging LED off
H = Charging LED on
IO (8) /SIMPWCTRL
104
SIM_PWR
IO (9) /SIM_CD
95
nON_HOOK
H = Off hook
L = On hook
I/O (10) /LT
134
LT (LED output)
I/O (11) /CLK32
73
nHF_DETECT
H = No Hands Free
L = Hands Free connected
I/O (12) /TSPACT(0)
65
TSPACT (0)
I/O (13) /nPWRCS
56
nPWRCS
I/O (14) /nCS1
50
PAGING_LED
L = Paging LED off
H = Paging LED On
I/O (15) /nCS0
49
CHARGE_ON
H = Charger On
L = Charger Off
2 outputs have 6 bit PWM capability clocked at 2MHz
LT
134
LED backlight
BU
120
Buzzer
Tones are generated by using timer 1 to switch the buzzer PWM on and off at a the frequency of timer 1. By
altering the value of timer 1 ringing tunes can be played.
During hands free operation the ringing tone is derived from the DSP using its tone generator.
Issue 1
Section 7
MCUK980101G8
Revision 0
7 - 4
Technical Guide
GEMINI