Output pin cell (o.pin) -4, Observe-only input pin cell (i.obs) -4 – Motorola MPC8260 User Manual
Page 396
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12-4
MPC8260 PowerQUICC II UserÕs Manual
MOTOROLA
Part III. The Hardware Interface
Figure 12-3. Output Pin Cell (O.Pin)
Figure 12-4. Observe-Only Input Pin Cell (I.Obs)
1
1
MUX
1
1
MUX
G1
C
D
C
D
From Last Cell
Clock DR
Update DR
Shift DR
1 Ñ EXTEST | Clamp
Data from
To Output
Buffer
0 Ñ Otherwise
Logic
System
To Next Cell
G1
1
1
MUX
G1
C
D
From Last Cell
Clock DR
Data to
System
Logic
Input
Pin
Shift DR
To Next Cell
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