EP4CE40 datasheet(173/488 Pages) ALTERA

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Chapter 8: Configuration and Remote System Upgrades in Cyclone IV Devices

8–9

Configuration

May 2013

Altera Corporation

Cyclone IV Device Handbook,

Volume 1

1 Smaller Cyclone IV E devices or package options (E144 and F256 packages) do not

have the MSEL[3]pin. The AS Fast POR configuration scheme at 3.0- or 2.5-V

configuration voltage standard and the AP configuration scheme are not supported in

Cyclone IV E devices without the MSEL[3]pin. To configure these devices with other

supported configuration schemes, select MSEL[2..0]pins according to the MSEL

settings in Table 8–5.

JTAG-based configuration

(2)

(3)

—

Notes to Table 8–4:

(1) Configuration voltage standard applied to the VCCIO supply of the bank in which the configuration pins reside.

(2) JTAG-based configuration takes precedence over other configuration schemes, which means the MSEL pin settings are ignored.

(3) Do not leave the MSEL pins floating. Connect them to VCCA or GND. These pins support the non-JTAG configuration scheme used in production.

Altera recommends connecting the MSEL pins to GND if your device is only using JTAG configuration.

Table 8–4. Configuration Schemes for Cyclone IV GX Devices (EP4CGX30 [only for F484 package], EP4CGX50,

EP4CGX75, EP4CGX110, and EP4CGX150)

(Part 2 of 2)

Configuration Scheme

MSEL3

MSEL2

MSEL1

MSEL0

POR Delay

Configuration Voltage Standard (V) (1)

Table 8–5. Configuration Schemes for Cyclone IV E Devices

Configuration Scheme

MSEL3

MSEL2

MSEL1

MSEL0

POR Delay

Configuration Voltage Standard (V) (1)

Fast

3.3

Fast

3.0, 2.5

Standard

3.3

Standard

3.0, 2.5

Fast

3.3

Fast

1.8

Standard

3.3

Standard

3.0, 2.5

Standard

1.8

Fast

3.3, 3.0, 2.5

Standard

3.3, 3.0, 2.5

FPP

Fast

3.3, 3.0, 2.5

Fast

1.8, 1.5

JTAG-based configuration

(2)

(3)

——

Notes to Table 8–5:

(1) Configuration voltage standard applied to the VCCIO supply of the bank in which the configuration pins reside.

(2) JTAG-based configuration takes precedence over other configuration schemes, which means the MSEL pin settings are ignored.

(3) Do not leave the MSEL pins floating. Connect them to VCCA or GND. These pins support the non-JTAG configuration scheme used in production.

Altera recommends connecting the MSEL pins to GND if your device is only using JTAG configuration.

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