325
7766F–AVR–11/10
ATmega16/32U4
Figure 26-3. Boundary-scan Cell for Bi-directional Port Pin with Pull-up Function.
DQ DQ
G
0
1
0
1
DQ DQ
G
0
1
0
1
0
1
Port Pin (PXn)
Vcc
EXTEST
To Next Cell
ShiftDR
Output Control (OC)
Output Data (OD)
Input Data (ID)
From Last Cell
UpdateDRClockDR
FF1 LD1
LD0FF0
0
1
Pull-up Enable (PUE)
