A1280DX-1CQB ACTEL [Actel Corporation], A1280DX-1CQB Datasheet - Page 10

• Manufacturer Part Number: A1280DX-1CQB
• Description: Integrator Series FPGAs: 1200XL and 3200DX Families
• Manufacturer: ACTEL [Actel Corporation]

Figure 8 • Quadrant Clock Network
Figure 9 • 3200DX IEEE 1149.1 Boundary Scan Circuitry
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QCLKB
QCLKA
*QCLK1IN
*QCLK2IN
*QCLK1IN, QCLK2IN, QCLK3IN, and QCLK4IN are internally-generated signals.
TMS
TCK
TDI
JTAG
JTAG
Module
Module
S0 S1
S0 S1
Quad
Clock
Quad
Clock
TAP Controller
Instruction
Register
Control Logic
JPROBE Register
Boundary Scan Register
QCLK1
QCLK2
Discontinued – v3.0
Instruction
I n t e g r a to r S e r i e s F P G A s : 1 2 0 0 X L a n d 3 2 0 0 D X F a m i l i e s
Decode
Register
QCLK3
QCLK4
Bypass
S1
S1
Module
Module
Quad
Clock
Quad
Clock
S0
S0
Output
MUX
*QCLK3IN
*QCLK4IN
QCLKC
QCLKD
TDO