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8018P–AVR–08/10
ATmega169P
13.3.7
Alternate Functions of Port G
The alternate pin configuration is as follows:
Note:
1. Port G, PG5 is input only. Pull-up is always on.
See Table 27-3 on page 297 for RSTDISBL fuse.
The alternate pin configuration is as follows:
RESET – Port G, Bit 5
RESET: External Reset input. When the RSTDISBL Fuse is programmed (‘0’), PG5 will function
as input with pull-up always on.
T0/SEG23 – Port G, Bit 4
T0, Timer/Counter0 Counter Source.
SEG23, LCD front plane 23
T1/SEG24 – Port G, Bit 3
T1, Timer/Counter1 Counter Source.
SEG24, LCD front plane 24
Table 13-20. Overriding Signals for Alternate Functions in PF3:PF0
Signal
Name
PF3/ADC3
PF2/ADC2
PF1/ADC1
PF0/ADC0
PUOE
0000
PUOV
0000
DDOE
0000
DDOV
0000
PVOE
0000
PVOV
0000
PTOE
––––
DIEOE
0000
DIEOV
0000
DI
––––
AIO
ADC3 INPUT
ADC2 INPUT
ADC1 INPUT
ADC0 INPUT
Table 13-21. Port G Pins Alternate Functions
(1)
Port Pin
Alternate Function
PG5
RESET
PG4
T0/SEG23 (Timer/Counter0 Clock Input or LCD Front Plane 23)
PG3
T1/SEG24 (Timer/Counter1 Clock Input or LCD Front Plane 24)
PG2
SEG4 (LCD Front Plane 4)
PG1
SEG13 (LCD Front Plane 13)
PG0
SEG14 (LCD Front Plane 14)
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