SCANSTA111SM National Semiconductor, SCANSTA111SM Datasheet - Page 14

• Manufacturer Part Number: SCANSTA111SM
• Manufacturer: National Semiconductor

Specifications of SCANSTA111SM

• Operating Temperature (min): -40C
• Operating Temperature Classification: Industrial
• Operating Temperature (max): 85C
• Package Type: FBGA
• Rad Hardened: No
• Lead Free Status / RoHS Status: Not Compliant

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Instructions
DGPIO
DGPIO
DGPIO
DGPIO
SGPIO
SGPIO
SGPIO
SGPIO
SGPIO
SGPIO
SGPIO
SGPIO
Other Undefined
Note 5: All other instructions act on selected 'STA111s only.
Note 6: Commands added to HDL version of 'STA111.
LEVEL 2 INSTRUCTON DESCRIPTIONS:
BYPASS: The BYPASS instruction selects the bypass regis-
ter for insertion into the active scan chain when the 'STA111
is selected.
EXTEST: The EXTEST instruction selects the boundary-scan
register for insertion into the active scan chain. The boundary-
scan register consists of seven sample only shift cells con-
nected to the S
EXTEST instruction performs the same function as the SAM-
PLE/PRELOAD instruction, since there aren't any scannable
outputs on the device.
SAMPLE/PRELOAD: The SAMPLE/PRELOAD instruction
selects the boundary-scan register for insertion into the active
scan chain. The boundary-scan register consists of seven
sample only shift cells connected to the S
IDCODE: The IDCODE instruction selects the device identi-
fication register for insertion into the active scan chain. When
IDCODE is the current active instruction the device identifi-
cation 0FC0F01F Hex is captured upon exiting the Capture-
DR state.
UNPARK: This instruction unparks the Local Scan Port Net-
work and inserts it into the active scan chain as configured by
Mode Register
7). Unparked LSPs are sequenced synchronously with the
'STA111's TAP controller. When a LSP has been parked in
the Test-Logic-Reset or Run-Test/Idle state, it will not become
unparked until the 'STA111's TAP Controller enters the Run-
Test/Idle state following the UNPARK instruction. An LSP
which has been parked in Test-Logic-Reset will be parked in
Run-Test/Idle upon update of an UNPARK instruction. If an
LSP has been parked in one of the stable pause states
(Pause-DR or Pause-IR), it will not become unparked until the
'STA111's TAP Controller enters the respective pause state.
(See
PARKTLR: This instruction causes all unparked LSPs to be
parked in the Test-Logic-Reset TAP controller state and re-
moves the LSP network from the active scan chain. The LSP
controllers keep the LSPs parked in the Test-Logic-Reset
state by forcing their respective TMS
logic 1 while the LSP controller is in the Parked-TLR state (see
Figure
PARKRTI: This instruction causes all unparked LSPs to be
parked in the Run-Test/Idle state. The update of the PARKR-
0
1
2
3
4
5
6
7
4
5
6
7
Figure
4).
9,
0
Figure
(and Mode Register
(0-6)
and OE inputs. On the 'STA111, the
10,
Figure
11, and
Hex Op-Code
1
n
in the HDL) (see
output with a constant
TBD
BA
BB
BC
BD
BE
B4
B5
B6
B7
B8
B9
BF
Figure
(0-6)
and OE inputs.
12).
Binary Op-Code
1011 0100
1011 0101
1011 0110
1011 0111
1011 1000
1011 1001
1011 1010
1011 1011
1011 1100
1011 1101
1011 1110
1011 1111
TBD
Table
14
TI instruction MUST immediately be followed by a TMS
(to enter the RTI state) in order to assure stability. When a
LSP
the LSP
TAP Controller state transitions of the 'STA111. When the in-
struction register is updated with the PARKRTI instruction,
TMS
parked local TAP Controllers to be parked in the Run-Test/
Idle state. When an LSP
active scan chain.
PARKPAUSE: The PARKPAUSE instruction has dual func-
tionality. It can be used to park unparked LSPs or to unpark
parked LSPs. The instruction places all unparked LSPs in one
of the TAP Controller pause states. A local port does not be-
come parked until the 'STA111's TAP Controller is sequenced
through Exit1-DR/IR into the Update-DR/IR state. When the
'STA111 TAP Controller is in the Exit1-DR or Exit1-IR state
and TMSB is high, the LSP controller forces a constant logic
0 onto TMSL thereby parking the port in the Pause-DR or
Pause-IR state respectively (see
tion can then be loaded to reconfigure the local ports or to
deselect the 'STA111 (i.e., MODESEL, GOTOWAIT, etc.).
If the PARKPAUSE instruction is given to a whose LSPs are
parked in Pause-IR or Pause-DR, the parked LSPs will be-
come unparked when the 'STA111's TAP controller is se-
quenced into the respective Pause state.
The PARKPAUSE instruction was implemented with this dual
functionality to enable backplane testing (interconnect testing
between boards) with simultaneous Updates and Captures.
Simultaneous Update and Capture of several boards can be
performed by parking LSPs of the different boards in the
Pause-DR TAP controller state, after shifting the data to be
updated into the boundary registers of the components on
each board. The broadcast address is used to select all
'STA111s connected to the backplane. The PARKPAUSE in-
struction is scanned into the selected 'STA111s and the
'STA111 TAP controllers are sequenced to the Pause-DR
state where the LSPs of all 'STA111s become unparked. The
local TAP controllers are then sequenced through the Up-
date-DR, Select-DR, Capture-DR, Exit1-DR, and parked in
the Pause-DR state, as the 'STA111 TAP controller is se-
quenced into the Update-DR state. When a LSP is parked, it
is removed from the active scan chain.
Data Register
Dedicated GPIO Register
Dedicated GPIO Register
Dedicated GPIO Register
Dedicated GPIO Register
Shared GPIO Register
Shared GPIO Register
Shared GPIO Register
Shared GPIO Register
Shared GPIO Register
Shared GPIO Register
Shared GPIO Register
Shared GPIO Register
Device Identification Register
n
n
is active (unparked), its TMS
will be forced to a constant logic 0, causing the un-
n
controller state transitions are synchronized with the
n
0
1
2
3
4
5
6
7
is parked, it is removed from the
4
5
6
7
Figure
n
signals follow TMS
4). Another instruc-
B
and
B
=0