ATmega640/1280/1281/2560/2561
• OC5A – Port L, Bit 3
OC5A, Output Compare Match A output: The PL3 pin can serve as an external output for the
Timer/Counter 5 Output Compare A. The pin has to be configured as an output (DDL3 set) to
serve this function. The OC5A pin is also the output pin for the PWM mode timer function.
• T5 – Port L, Bit 2
T5, Timer/Counter5 counter source.
• ICP5 – Port L, Bit 1
ICP5, Input Capture Pin 5: The PL1 pin can serve as an Input Capture pin for Timer/Counter5.
• ICP4 – Port L, Bit 0
ICP4, Input Capture Pin 4: The PL0 pin can serve as an Input Capture pin for Timer/Counter4.
Table 13-31 and Table 13-32 relates the alternate functions of Port L to the overriding signals
shown in Figure 13-5 on page 76.
Table 13-31. Overriding Signals for Alternate Functions in PL7:PL4
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
PTOE
DIEOE
DIEOV
DI
PL7
0
PL6
0
PL5/OC5C
PL4/OC5B
0
0
0
0
0
0
–
–
0
0
–
–
0
0
–
–
OC5C ENABLE
OC5B ENABLE
–
–
OC5C
OC5B
–
–
–
0
0
0
–
–
0
0
0
–
0
0
0
0
0
0
AIO
–
–
99
2549L–AVR–08/07