Motorola DSP56305 User Manual page 408

24-bit digital signal processor
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On-Chip Emulation Module
Examples of JTAG and OnCE interaction
Table 10-14 TMS Sequencing for Reading Pipeline Registers (Continued)
Step
TMS
f
1
g
1
Select-DR-Scan
h
0
i
0
..................................................................
i
0
j
1
k
1
l
1
Select-DR-Scan
m
0
n
0
..................................................................
n
0
o
1
p
1
q
1
Select-DR-Scan
r
0
s
0
..................................................................
s
0
t
1
u
1
10-32
JTAG Port
Update-DR
Execute "Read PIL"
Capture-DR
Shift-DR
Shift-DR
Exit1-DR
Update-DR
Capture-DR
Shift-DR
Shift-DR
Exit1-DR
Update-DR
Execute "Read PDB"
Capture-DR
Shift-DR
Shift-DR
Exit1-DR
Update-DR
DSP56305 User's Manual
OnCE Module
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Idle
Note
The PIL value is loaded in
the shifter.
The 24 bits of the PIL are
shifted out (24 steps).
The eight bits of the OnCE
command "Read PDB"
(10001010) are shifted in.
PDB value is loaded in
shifter
The 24 bits of the PDB are
shifted out (24 steps).
MOTOROLA

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