Altera Corporation

15

Configuration Devices for SRAM-Based LUT Devices Data Sheet

Figure 6 shows two APEX II, APEX 20K, Mercury, ACEX 1K, and FLEX

devices configured with two EPC2 or EPC1 devices.

Figure 6. Two ACEX 1K, APEX 20K, APEX II, FLEX 10K, FLEX 6000, or Mercury Devices Configured with Two

EPC2 or EPC1 Configuration Devices

Note (1)

Configuration

Device 1

Configuration

Device 2

GND

GND

DCLK

DATA0

nSTATUS

CONF_DONE

nCONFIG

GND

nCE

MSEL0

MSEL1

DCLK

DATA0

nSTATUS

CONF_DONE

nCONFIG

nCE

MSEL0

MSEL1

nCEO

(2)

(2)

(2)

LUT-Based PLD

(3)

LUT-Based PLD

(3)

DCLK

DATA

nCS

OE

DCLK

DATA

OE

nCS

nINIT_CONF

(5)

nCASC

(4)

Configuration

Device 1

Configuration

Device 2

GND

GND

DCLK

DATA0

nSTATUS

CONF_DONE

nCONFIG

GND

nCE

MSEL0

MSEL1

DCLK

DATA0

nSTATUS

CONF_DONE

nCONFIG

nCE

MSEL0

MSEL1

nCEO

(2)

(2)

(2)

(6)

APEX 20KE PLD

(7)

APEX 20KE PLD

(7)

DCLK

DATA

nCS

OE

DCLK

DATA

OE

nCS

nINIT_CONF

(5)

nCASC

(4)

(8)

APEX II, ACEX 1K, Mercury, APEX 20KC,

APEX 20K, FLEX 10K, & FLEX 6000 Devices

APEX 20KE Devices