Panasonic G600 Technical Manual page 29

GEMINI
Signal
IO (5) /EXTINT
IO (6) / nRESETOUT
IO (7) / SIM_RnW
IO (8) /SIMPWCTRL
IO (9) /SIM_CD
I/O (10) /LT
I/O (11) /CLK32
I/O (12) /TSPACT(0)
I/O (13) /nPWRCS
I/O (14) /nCS1
I/O (15) /nCS0
2 outputs have 6 bit PWM capability clocked at 2MHz
LT
BU
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
Revision 0
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I/O pin Assignments
GEMINI Pin Use
109 EXTINT
106 PA_LOW
105 CHARGE_LED
104 SIM_PWR
95 nON_HOOK
134 LT (LED output)
73 nHF_DETECT
65 TSPACT (0)
56 nPWRCS
50 PAGING_LED
49 CHARGE_ON
134 LED backlight
120 Buzzer
Section 7
7 - 4
Signal
H = Low RF Power level
L = High RF power level
L = Charging LED off
H = Charging LED on
H = Off hook
L = On hook
H = No Hands Free
L = Hands Free connected
L = Paging LED off
H = Paging LED On
H = Charger On
L = Charger Off
MCUK980101G8
Technical Guide