ATMEGA169V Datasheet, PDF (237/365 Pages) ATMEL Corporation – 8-bit Microcontroller with 16K Bytes In-System Programmable Flash

ATmega169/V
Figure 109. Boundary-scan Cell for Bi-directional Port Pin with Pull-up Function.
ShiftDR
To Next Cell
EXTEST
Vcc
Pullup Enable (PUE)
0
FF2
LD2
1
0
DQ
DQ
1
G
Output Control (OC)
FF1
LD1
0
0
DQ
DQ
1
1
G
Output Data (OD)
0
0
1
1
Input Data (ID)
FF0
DQ
LD0
0
DQ
1
G
From Last Cell ClockDR
UpdateDR
2514P–AVR–07/06
237