ATMEGA16-16AU SL602 Atmel, ATMEGA16-16AU SL602 Datasheet - Page 53

• Manufacturer Part Number: ATMEGA16-16AU SL602
• Manufacturer: Atmel

2466T–AVR–07/10
When reading back a software assigned pin value, a nop instruction must be inserted as indi-
cated in
clock. In this case, the delay t
Figure 25. Synchronization when Reading a Software Assigned Pin Value
INSTRUCTIONS
SYSTEM CLK
SYNC LATCH
Figure
PINxn
25. The out instruction sets the “SYNC LATCH” signal at the positive edge of the
r16
r17
out PORTx, r16
pd
through the synchronizer is one system clock period.
0x00
nop
t
pd
0xFF
in r17, PINx
ATmega16(L)
0xFF
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