EPF81500AQC240-2 Datasheet, PDF (14/62 Pages) Altera Corporation – Programmable Logic Device Family

FLEX 8000 Programmable Logic Device Family Data Sheet
Figure 7. FLEX 8000 LE Asynchronous Clear & Preset Modes
Asynchronous Clear
VCC
PRN
DQ
Asynchronous Preset
LABCTRL1 or
LABCTRL2
PRN
DQ
LABCTRL1 or
LABCTRL2
CLRN
Asynchronous Load with Clear
LABCTRL1
(Asynchronous
Load)
NOT
DATA3
(Data)
NOT
LABCTRL2
(Clear)
Asynchronous Load with Preset
LABCTRL1
(Asynchronous
Load)
NOT
CLRN
PRN
DQ
CLRN
LABCTRL2
(Preset)
DATA3
(Data)
NOT
PRN
DQ
CLRN
Asynchronous Load without Clear or Preset
LABCTRL1
(Asynchronous
Load)
NOT
DATA3
(Data)
NOT
PRN
DQ
CLRN
14
Asynchronous Clear & Preset
LABCTRL1
PRN
DQ
LABCTRL2
CLRN
Altera Corporation