274
Contention between Buffer Register Write and Input Capture: If a buffer register is used for
input capture buffering and an input capture signal occurs in the T
3
state of a write cycle, input
capture takes priority and the write to the buffer register is not performed. See figure 8-69.
ø
Address
Internal write signal
Input capture signal
GR
BR
BR address
Buffer register write cycle
T
1
T
2
T
3
N
X
M
N
TCNT value
Figure 8-69 Contention between Buffer Register Write and Input Capture