SCANSTA111MT/NOPB National Semiconductor, SCANSTA111MT/NOPB Datasheet - Page 17

• Manufacturer Part Number: SCANSTA111MT/NOPB
• Description: IC SCAN BRIDGE MULTIDROP 48TSSOP
• Manufacturer: National Semiconductor

Specifications of SCANSTA111MT/NOPB

• Applications: *
• Interface: *
• Voltage - Supply: *
• Package / Case: 48-TSSOP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *SCANSTA111MT; *SCANSTA111MT/NOPB; SCANSTA111MT

Mode Register(s)
MR0: X000X000
MR0: X000X001
MR0: X000X010
MR0: X000X011
MR0: X000X100
MR0: X000X101
MR0: X000X110
MR0: X000X111
MR0: X010X000
MR0: X010X001
MR0: X010X010
MR0: X010X011
MR0: X010X100
...
MR0: X110X111
MR0: X000X000
MR1: XXXXX001
(Note
MR0: X000X001
MR1: XXXXX001
(Note
MR0: X000X010
MR1: XXXXX001
(Note
...
MR0: X110X111
MR1: XXXXX001
(Note
MR0: X000X000
MR1: XXXXX010
(Note
...
MR0: X110X111
MR1: XXXXX111
(Note
MR0: XXX1XXXX
MR1: XXXXXXXX
(Note
Note 7: Mode Register
Note 8: In a device with 8 LSPs there are 2
Bit 3 LSP n
1
0
1
0
X
7)
7)
7)
7)
7)
7)
7)
Parked
Parked
Unparked
Unparked
Parked-TLR
TABLE 8. Test Clock Configuration
1
is only available in the HDL version (up to eight LSPs). The Silicon version has three LSPs and uses Mode Register
Scan Chain Configuration (if unparked)
TDI
TDI
TDI
TDI
TDI
TDI
TDI
TDI
TDI
TDI
TDI
TDI
TDI
...
TDI
TDI
TDI
TDI
...
TDI
→
TDI
...
TDI
PAD
TDI
TCK n
Stopped
Free-running
Free-running
Free-running
Stopped after 512 clock pulses
PAD
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
LSP
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
Register
TDO
6
→
8
possible LSPN configurations: No LSPs, each individual LSP, combinations of 2 to 7 LSPs, and all 8 LSPs.
B
PAD
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
TDO
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
LSP
TDO
TABLE 7. Mode Register Control of LSPN
→
0
1
0
2
0
1
0
3
0
1
0
2
0
5
0
1
0
6
0
LSP
B
B
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
(Loopback)
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
7
→
PAD
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→
→→
→
→
TDO
TDO
LSP
TDO
LSP
LSP
LSP
TDO
LSP
LSP
LSP
LSP
LSP
TDO
LSP
LSP
TDO
LSP
LSP
→
1
2
2
1
3
3
1
3
1
5
5
1
TDO
B
B
B
B
B
B
→
→
→
→
→
→
→
→
→
→
→
→
1
17
→
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
PAD
B
PAD
Bit 3 is normally set to logic 0 so that TCK
when the local scan ports are parked in the Parked-RTI,
Parked-Pause-DR or Parked-Pause-IR state. When the local
ports are parked, bit 3 can be programmed with logic 1, forcing
all of the LSP TCK
power sensitive applications to reduce the power consumed
by the test circuitry in parts of the system that are not under
test. When in the Parked-TLR state, TCK
after 512 clock pulses have been received on TCK
dent of the bit 3 value.
→
→
→
→
→
→
→
→
→
→
→
→
→
TDO
TDO
TDO
LSP
TDO
TDO
LSP
TDO
LSP
TDO
TDO
LSP
LSP
2
5
2
2
B
B
B
B
B
B
B
B
→
→
→
→
2
→
PAD
PAD
PAD
PAD
PAD
→
→
→
→
n
's to stop. This feature can be used in
→
TDO
TDO
LSP
LSP
LSP
3
3
B
B
→
→
3
→
PAD
PAD
PAD
→
→
→
LSP
LSP
LSP
n
4
4
is gated (stopped)
→
→
4
n
0
→
is free-running
PAD
PAD
for LSP selection.
PAD
www.national.com
B
→
→
indepen-
→
TDO
LSP
LSP
5
B
→
5