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Altera Corporation

Configuration Devices for SRAM-based LUT Devices Data Sheet

Figure 3 shows the configuration device block diagram.

Figure 3. Configuration Device Block Diagram

Notes to

Figure 3:

(1)

Do not use EPC2 devices to configure FLEX 6000 devices.

(2)

The EPC1441, EPC1064, and EPC1064V devices do not support data cascading. The EPC2, EPC1, and EPC1213

devices support data cascading.

(3)

The OE pin is a bidirectional open-drain pin.

DCLK

nCS

OE

Decode

Logic

Address

DATA

DATA

Shift

Register

EPROM

Array

nCS

Decode

Logic

Address

Oscillator

Oscillator

Control

EPROM

Array

Shift

Register

DATA

DATA

DCLK

nCASC

nCASC

(2)

(2)

PLD (except FLEX 8000) Configuration Using an EPC2, EPC1, or EPC1441

FLEX 8000 Device Configuration Using an EPC1, EPC1441, EPC1213, EPC1064, or EPC1064V

Address

Counter

CLK

ENA

nRESET

Error

Detection

Circuitry

OE

(3)

Address

Counter

CLK

ENA

nRESET

(1)