EPF10K10 ETC, EPF10K10 Datasheet - Page 22

• Manufacturer Part Number: EPF10K10
• Description: EMBEDDED PROGRAMMABLE LOGIC FAMILY
• Manufacturer: ETC

Figure 10. LE Clear & Preset Modes
22
FLEX 10K Embedded Programmable Logic Family Data Sheet
Chip-Wide Reset
Chip-Wide Reset
Asynchronous Clear
(Asynchronous
(Asynchronous
Asynchronous Load with Clear
Asynchronous Load with Preset
labctrl1 or
(Preset)
labctrl2
labctrl2
labctrl1
labctrl2
labctrl1
(Clear)
(Data)
(Data)
data3
data3
Load)
Load)
NOT
NOT
D
CLRN
VCC
PRN
NOT
NOT
Q
In addition to the six clear and preset modes, FLEX 10K devices provide a
chip-wide reset pin that can reset all registers in the device. Use of this
feature is set during design entry. In any of the clear and preset modes, the
chip-wide reset overrides all other signals. Registers with asynchronous
presets may be preset when the chip-wide reset is asserted. Inversion can
be used to implement the asynchronous preset.
of how to enter a section of a design for the desired functionality.
Chip-Wide Reset
Chip-Wide Reset
Asynchronous Preset
labctrl1 or
labctrl2
D
CLRN
PRN
Q
VCC
D
CLRN
PRN
D
CLRN
PRN
(Asynchronous
Q
Asynchronous Load without Clear or Preset
Q
labctrl1
(Data)
Load)
data3
Chip-Wide Reset
Chip-Wide Reset
NOT
NOT
Asynchronous Clear & Preset
Figure 10
labctrl1
labctrl2
Altera Corporation
shows examples
D
CLRN
PRN
D
CLRN
PRN
Q
Q