DSP56309UM Datasheet, PDF (299/424 Pages) Motorola, Inc – 24-Bit Digital Signal Processor

Freescale Semiconductor, Inc.
On-Chip Emulation Module
JTAG PORT/onCE MODULE INTERACTION
Table 10-13 TMS Sequencing for ENABLE_ONCE (Continued)
Step TMS
JTAG Port
OnCE Module
Note
l
0
Run-Test/Idle
Idle
................................................
l
0
Run-Test/Idle
Idle
This step can be repeated,
enabling an external command
controller to poll the status.
Table 10-14 TMS Sequencing for Reading Pipeline Registers
Step TMS
JTAG Port
OnCE Module
Note
a
0
Run-Test/Idle
Idle
Ñ
b
1
Select-DR-Scan
Idle
Ñ
c
0
Capture-DR
Idle
Ñ
d
0
Shift-DR
Idle
..................................................................
d
0
Shift-DR
Idle
The eight bits of the OnCE
command ÒRead PILÓ
(10001011) are shifted in.
e
1
Exit1-DR
Idle
Ñ
f
1
Update-DR
Execute ÒRead PILÓ
The PIL value is loaded in
the shifter.
g
1
Select-DR-Scan
Idle
Ñ
h
0
Capture-DR
Idle
Ñ
i
0
Shift-DR
Idle
..................................................................
The 24 bits of the PIL are
shifted out (24 steps).
i
0
Shift-DR
Idle
j
1
Exit1-DR
Idle
Ñ
k
1
Update-DR
Idle
Ñ
l
1
Select-DR-Scan
Idle
Ñ
m
0
Capture-DR
Idle
Ñ
MOTOROLA
DSP56309UM/D
For More Information On This Product,
Go to: www.freescale.com
10-31