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IEEE 1149.1 Test (JTAG) and Debug Pipe Control Modes
9-8
M68060 USER’S MANUAL
MOTOROLA
Figure 9-3. Output Pin Cell (O.Pin)
Figure 9-4. Observe-Only Input Pin Cell (I.Obs)
OUTPUT DATA
FROM SYSTEM LOGIC
FROM
LAST
CELL
CLOCK DR
SHIFT DR TO NEXT CELL
TO OUTPUT
BUFFER
1 = EXTEST
0 = OTHERWISE
1D
C1
1
MUX
1
G1
1
MUX
1
G1
UPDATE DR
1D
C1
FROM
LAST
CELL
TO
SYSTEM
LOGIC
SHIFT DR
CLOCK DR
TO NEXT CELL
1D
C1 1
MUX
1
G1
INPUT
PIN
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