ispgdx80va Lattice Semiconductor Corp., ispgdx80va Datasheet - Page 19
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ispgdx80va
Manufacturer Part Number
ispgdx80va
Description
In-system Programmable 3.3v Generic Digital Crosspoint
Manufacturer
Lattice Semiconductor Corp.
Datasheet
1.ISPGDX80VA.pdf
(24 pages)
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101
The ispJTAG programming is accomplished by execut-
ing Lattice private instructions under the Boundary Scan
State Machine.
Details of the programming sequence are transparent to
the user and are handled by Lattice ISP Daisy Chain
Figure 11. Boundary Scan Register Circuit for Input-Only Pins
Figure 12. Boundary Scan State Machine
Boundary Scan (Continued)
0
1
Run-Test/Idle
Test-Logic-Reset
(from previous
Clock DR
0
SCANIN
Shift DR
Input Pin
cell
1
1
0
1
Select-DR-Scan
Capture-DR
Update-DR
Exit2-DR
Exit1-DR
Pause-DR
Shift-DR
0
0
0
1
1
1
0
19
Downlowad software, ispCODE ‘C’ routines or any third-
party programmers. Contact Lattice Technical Support to
obtain more detailed programming information.
1
D
0
0
1
Specifications ispGDX80VA
Q
0
1
Select-IR-Scan
1
SCANOUT
(to next cell)
Capture-IR
Pause-IR
Update-IR
Exit1-IR
Shift-IR
Exit2-IR
0
0
1
0
1
1
0
1
0
0
1