Manualshelf

Datasheet

ManualsBrandsMICROCHIP TECHNOLOGY ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller TQFP 100 (14x14) 8-Bit 16 MHz I/O number 86
311312313314315316317318319320
312
ATmega640/1280/1281/2560/2561
2549K–AVR–01/07
Figure 132. 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)