Datasheet

ATmega32A

 2018 Microchip Technology Inc. Data Sheet Complete DS40002072A-page 59

Figure 13-4. Synchronization when Reading a Software Assigned Pin Value

The following code example shows how to set port B pins 0 and 1 high, 2 and 3 low, and define the port pins from

4 to 7 as input with pull-ups assigned to port pins 6 and 7. The resulting pin values are read back again, but as pre-

viously discussed, a nop instruction is included to be able to read back the value recently assigned to some of the

pins.

nop in r17, PINx

0xFF

0x00

0xFF

out PORTx, r16

SYSTEM CLK

r16

INSTRUCTIONS

SYNC LATCH

PINxn

r17