EP4CE6E22C8N - Altera - Product.Live

June 2012 Altera Corporation

ES-01027-2.3 Errata Sheet

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Errata Sheet for Cyclone IV Devices

This errata sheet provides updated information on known device issues affecting

Cyclone®IV devices.

Table 1 lists specific Cyclone IV issues, and which Cyclone IV devices are affected by

each issue.

Table 1. Known Issues for Cyclone IV Devices (Part 1 of 2)

Issue Affected Devices Planned Fix

“PLL phasedone Signal Stuck at Low”

In some cases, the Cyclone IV phase-locked loop (PLL)

blocks exhibit the

phasedone

signal stuck at low during

the PLL dynamic phase shift.

All Cyclone IV Devices Quartus II software

version 12.0 and later.

“Human Body Model Electrostatic Discharge”

The row I/Os on certain Cyclone IV GX devices do not

meet the human body model (HBM) electrostatic

discharge (ESD) specification stated in the device

datasheet.

EP4CGX15 and EP4CGX30

(except for the F484 package)

Devices

No plan to fix silicon.

“DisplayPort Receiver Specification”

The Cyclone IV GX transceiver is compliant with the

DisplayPort transmitter specifications only for 1.62 Gbps

and 2.7 Gbps data rates. The transceiver is not compliant

with the DisplayPort receiver jitter tolerance specification.

All Cyclone IV GX Devices No plan to fix silicon.

“Asynchronous Spread Spectrum Clock Modulation

Tracking”

The transceiver channels do not support tracking of the

incoming data with asynchronous spread spectrum clock

(SSC) modulation.

EP4CGX30 (F484 package),

EP4CGX50, and EP4CGX75

Devices only.

Support of asynchronous SSC

tracking capability was never

planned for other Devices.

No plan to fix silicon.

“SATA CDR PPM Tolerance”

To support the serial ATA (SATA) protocol in

Cyclone IV GX devices, you must constrain the clock data

recovery (CDR) parts-per-million (PPM) tolerance to a

specified range.

EP4CGX30 (F484 package),

EP4CGX50, and EP4CGX75

Devices

No plan to fix silicon.

“Remote System Upgrade”

The remote system upgrade (RSU) feature fails when

loading an invalid configuration image.

All Cyclone IV GX Devices Quartus II software

version 11.1

Page 2 PLL phasedone Signal Stuck at Low

Errata Sheet for Cyclone IV Devices June 2012 Altera Corporation

PLL phasedone Signal Stuck at Low

In some cases, the Cyclone IV PLL blocks exhibit the

phasedone

signal stuck at low

during the PLL dynamic phase shift. When the PLL

phasedone

signal is stuck at low,

the intended phase shift does not happen. You can recover from the PLL

phasedone

signal being stuck at low by resetting the PLL or by restarting the phase shift

operation by asserting the

phasestep

signal.

Solution

To resolve the PLL

phasedone

signal stuck at low issue, the Altera® PLL megafunction

is enhanced to automatically restart the phase shift operation internally in the Altera

PLL megafunction whenever the PLL

phasedone

signal is stuck at low. Restarting the

phase shift operation compensates for the missing phase shift operation and also

recovers the

phasedone

signal.

This Altera PLL megafunction solution will be implemented in the Quartus II

software version 12.0 and later. Altera recommends upgrading to the latest Quartus II

software, regenerating the PLL megafunction, and recompiling your design.

“Pin Connection Guidelines Update for Transceiver

Applications that Run at 2.97 Gbps Data Rate”

The affected Cyclone IV GX devices may not able to meet

the protocol jitter specification or may have a higher bit

error rate (BER) if you do not follow these guidelines.

EP4CGX30 (F484 package),

EP4CGX50, EP4CGX75,

EP4CGX110, and EP4CGX150

Devices

No plan to fix silicon.

“Quartus II Mapping Issue with a PCIe ×1 Interface Using

the Hard IP Block”

The Quartus II software incorrectly maps the PCIe

interfaces when using the hard IP block.

All Cyclone IV GX Devices Quartus II software

version 10.1

“PLL Cascading for Transceiver Applications is not

Supported”

Only the direct

REFCLK

DIFFCLK

pins driving the

phase-locked loop (PLL) input of a transceiver are

allowed.

All Cyclone IV GX Devices

Fix is not applicable.

Software restriction is

added in Quartus II

software version 10.1 and

later.

“Removal of the 500 PPM and 1000 PPM Options for

the Programmable PPM Detector in the ALTGX

MegaWizard Plug-In Manager”

The 500 PPM and 1000 PPM options in the ALTGX

MegaWizard Plug-In Manager are not supported.

All Cyclone IV GX Devices No plan to fix silicon.

“External Memory Specification for DDR2 SDRAM”

Final full-rate DDR2 SDRAM maximum clock rate

specification on column and row I/Os.

All Cyclone IV E Core Voltage

1.0-V I8L Devices

For the solution, refer to

“External Memory

Specification for DDR2

SDRAM” on page 10.

Table 1. Known Issues for Cyclone IV Devices (Part 2 of 2)

Issue Affected Devices Planned Fix

Human Body Model Electrostatic Discharge Page 3

Errata Sheet for Cyclone IV DevicesJune 2012 Altera Corporation

Additionally, software patches are available for the Quartus II software versions 9.1

SP2 and 10.1 SP1 to upgrade the PLL megafunction with the solution. To download

and install the Quartus II software patch, refer to the PLL Phasedone Stuck at Low

Solution.

If you need additional support, file a service request using mySupport.

Human Body Model Electrostatic Discharge

The row I/Os on certain Cyclone IV GX devices do not meet the human body model

(HBM) electrostatic discharge (ESD) specification stated in the device datasheet. All

other I/Os, including the high-speed serial interface (HSSI) I/Os, meet the HBM ESD

specification.

This issue only affects the EP4CGX15 and EP4CGX30 (except for the F484 package)

devices and there will not be a silicon fix.

The EP4CGX15 and EP4CGX30 (except for the F484 package) devices are considered

HBM Class 0 per JEDEC standard 22-A114. Altera recommends handling the

ESD-sensitive devices using the ESD control methods as stated in ANSI/ESD S20.20

or IEC61340-5-1.

If you have additional questions, contact your local Altera sales representative.

DisplayPort Receiver Specification

The Cyclone IV GX transceiver meets the transmitter compliance specifications as a

1.62 Gbps and 2.7 Gbps transmitter for a digital display interface unit.

However, the Cyclone IV GX transceiver does not meet the receiver jitter tolerance

specification that requires tracking of at least one unit interval (UI) at 2 MHz jitter

tolerance test without asynchronous spread spectrum clocking (SSC) modulation

enabled. If you want to use the transceiver as a DisplayPort receiver, you must verify

the system margin and its jitter components in the application design.

Asynchronous Spread Spectrum Clock Modulation Tracking

The receiver clock data recover (CDR) is not able to track the incoming data with

asynchronous SSC modulation for the serial ATA (SATA), DisplayPort, and

V-by-one HS protocols.

The receiver CDR is able to track the incoming data with synchronous SSC

modulation for the PCI Express® (PCIe®) Gen1 protocol.

If you are considering a custom protocol design that requires SSC modulation in a

Basic mode configuration, Altera recommends designing with synchronous SSC

modulation.

Page 4 SATA CDR PPM Tolerance

Errata Sheet for Cyclone IV Devices June 2012 Altera Corporation

SATA CDR PPM Tolerance

You must constrain the CDR PPM tolerances for both SATA Gen1 and Gen2 data rates

based on Table 2 without asynchronous SSC modulation for incoming data.

Remote System Upgrade

The remote system upgrade (RSU) feature does not operate correctly when you

initiate a reconfiguration cycle that goes from a factory configuration image to an

invalid application configuration image. In this scenario, the Cyclone IV GX device

fails to revert back to the factory configuration image after a configuration error is

detected while loading the invalid application configuration image. The failure is

indicated by a continuous toggling of the

nSTATUS

pin, or the

CONF_DONE

pin stays low

after configuration.

In a correct operation, the Cyclone IV GX device would revert back to the factory

configuration image after a configuration error is detected with the invalid

configuration image.

An invalid application configuration image is classified as one of the following:

■A partially programmed application image

■An application image assigned with a wrong start address

The RSU feature works correctly with all other reconfiguration trigger conditions.

Workaround

A workaround is implemented in the ALTREMOTE_UPDATE megafunction and is

available in Quartus® II software version 11.1 by enabling the POF checking feature.

fFor more information about the POF checking feature, refer to AN 603: Active Serial

Remote System Upgrade Reference Design.

Table 2. CDR PPM Device Tolerances (Asynchronous SSC Not Enabled)

Device

Unit

EP4CGX15 EP4CGX22

EP4CGX30

(F169/F324

packages)

EP4CGX30

(F484

package)

EP4CGX50 EP4CGX75 EP4CGX110 EP4CGX150

CDR PPM

tolerance

(Async SSC

not

enabled)

±350 (1) ±350 (1) ±350 (1) ±200 ±200 ±200 ±350 (1) ±350 (1) PPM

Note to Table 2:

(1) To support CDR PPM tolerances greater than ±300 PPM, implement a PPM detector in your user logic and configure your device in CDR to Manual

Lock mode.

Pin Connection Guidelines Update for Transceiver Applications that Run at 2.97 Gbps Data Rate Page 5

Errata Sheet for Cyclone IV DevicesJune 2012 Altera Corporation

Pin Connection Guidelines Update for Transceiver Applications that

Run at 2.97 Gbps Data Rate

You may not meet the protocol jitter specification or may have a higher bit error rate

(BER) if you do not use the following guidelines.

If your transceiver applications run at 2.97 Gbps data rate, you must ground specific

pins (refer to Table 3) next to the reference clock directly through the via under the

device to the PCB ground plane on your board. You also must assign the specific pins

to ground in the Quartus II software. To minimize the impact listed in Table 3, Altera

recommends using

REFCLK[1..0]

and

REFCLK[5..4]

reference clocks before using

REFCLK2

and

REFCLK3

reference clocks.

There is no action required and no performance degradation for input reference clocks

that are used to drive transceiver channels at 2.97 Gbps data rates.

Table 3 lists the reference clock pins and the associated I/O pins to be grounded for

transceiver applications that run at 2.97 Gbps data rate.

Table 3. Reference Clock Pins and the Associated I/O Pins to be Grounded for 2.97 Gbps Transceiver

Applications (Part 1 of 3)

Package Reference

Clock Bank Reference

Clock Pins I/O Pins to Ground Impact

F23

REFCLK[1..0]

3B (1)

AA4 (

CRC_ERROR

)(5)

W8 (

INIT_DONE

)(5)

AB3 (

nCEO

)(5)

MPLL_5

and/or

GPLL_1

ZDB mode is not

supported. (7)

REFCLK2

3A (2) M11

N11

AB10

AB11

R13

T13

W12

W13

If you use a DDR system,

the following DQ groups

will not be supported (8):

■DQ4B in 8 groups

■DQ5B in 8/9 groups

■DQ3B and DQ5B in

16/18 groups

■DQ5B in 32/36

groups

Page 6 Pin Connection Guidelines Update for Transceiver Applications that Run at 2.97 Gbps Data Rate

Errata Sheet for Cyclone IV Devices June 2012 Altera Corporation

F27

REFCLK[1..0]

3B (1)

T10

U10

AC6 (

CRC_ERROR

)(5)

AB7 (

INIT_DONE

)(5)

AC7 (

nCEO

)(5)

AC5

AD4

AB5

MPLL_5

and/or

GPLL_1

ZDB mode is not

supported. (7)

REFCLK[5..4]

8B (1)

K10

L10

E6 (

DATA1

ASDO

)(5)

D5 (

nCSO

)(5)

D4 (

CLKUSR

)(5),(6)

D6 (

DATA0

)(5)

MPLL_8

ZDB mode is not

supported. (7)

REFCLK2

3A (2),(4) T14

T15

AC14

AD14

AE14

AF10

AF11

AF12

If you use a DDR system,

the following DQ groups

will not be supported (7):

■DQ4B in 8 groups

■DQ5B in 8/9 groups

■DQ3B and DQ5B in

16/18 groups

■DQ5B in 32/36

groups

REFCLK3

8A (3),(4) L14

L15

A12

A13

B13

C13

C14

C15

If you use a DDR system,

the following DQ groups

will not be supported (7):

■DQ5T in 8 groups

■DQ3T and DQ5T in

16/18 groups

■DQ5T in 32/36

groups

Table 3. Reference Clock Pins and the Associated I/O Pins to be Grounded for 2.97 Gbps Transceiver

Applications (Part 2 of 3)

Package Reference

Clock Bank Reference

Clock Pins I/O Pins to Ground Impact

Pin Connection Guidelines Update for Transceiver Applications that Run at 2.97 Gbps Data Rate Page 7

Errata Sheet for Cyclone IV DevicesJune 2012 Altera Corporation

F31

REFCLK[1..0]

3B (1)

V11

V12

W11

W12

AD6 (

CRC_ERROR

)(5)

AE8 (

INIT_DONE

)(5)

AE7 (

nCEO

)(5)

AE6

AF6

AG6

MPLL_5

and/or

GPLL_1

ZDB mode is not

supported. (7)

REFCLK[5..4]

8B (1)

K11

L10

L11

M10

G9 (

DATA1

ASDO

)(5)

B4 (

nCSO

)(5)

A4 (

CLKUSR

)(5),(6)

A3 (

DATA0

)(5)

MPLL_8

ZDB mode is not

supported. (7)

REFCLK2

3A (2),(4) V15

W15

AA17

AF16

AG16

AH16

AJ13

AK14

If you use a DDR system,

the following DQ groups

will not be supported (8):

■DQ4B in 8 groups

■DQ5B in 8/9 groups

■DQ4B in 16/18

groups

■DQ2B in 32/36

groups

REFCLK3

8A (3),(4) K15

L15

A16

B16

C16

F16

G15

K17

If you use a DDR system,

DQ5T in 8/9,

16/18, and 32/36

groups will not be

supported. (8)

Notes to Table 3:

(1) The unused adjacent reference clock pins in the same bank can only be used as differential input clock.

(2) The unused adjacent reference clock pins in Bank 4 (Package F23: AA12 and AB12 pins, package F27: AF13 and AF14 pins, and package F31:

AJ16 and AK16 pins) can only be used as differential input clock.

(3) The unused adjacent reference clock pins in Bank 7 (Package F27: A14 and B14 pins and package F31: A15 and B15 pins) can only be used as

differential input clock.

(4) You can only use

REFCLK2

in Bank 3A for transceiver block GXBL0 and

REFCLK3

in Bank 8A for transceiver block GXBL1.

(5) Do not tie this pin to ground if it is used for configuration or a dedicated function in User mode. Dedicated functions include using the

DATA1

ASDO

nCSO

, and

DATA0

pins for EPCS access and the

crc_error

pin for a cyclic redundancy check (CRC) error function. Do not use

this pin as a user I/O in User mode.

(6) Do not toggle the

CLKUSR

pin in User mode. Reassign the

CLKUSR

pin to another I/O pin if it is being used in User mode.

(7) You can alternatively use zero delay buffer (ZDB) mode with other phase-locked loops (PLLs).

(8) You can alternatively use other DQ/DQS groups or wraparound DQ/DQS groups. For more information about wraparound DQ/DQS performance,

refer to the External Memory Interface Spec Estimator page on Altera website.

Table 3. Reference Clock Pins and the Associated I/O Pins to be Grounded for 2.97 Gbps Transceiver

Applications (Part 3 of 3)

Package Reference

Clock Bank Reference

Clock Pins I/O Pins to Ground Impact

Page 8 Quartus II Mapping Issue with a PCIe ×1 Interface Using the Hard IP Block

Errata Sheet for Cyclone IV Devices June 2012 Altera Corporation

Table 4 lists the Quartus II software support planning.

fThe Cyclone IV Device Family Pin Connection Guidelines has been updated with the

guidelines for transceiver applications that run at 2.97 Gbps data rate.

Quartus II Mapping Issue with a PCIe ×1 Interface Using the Hard IP

Block

The Quartus II software version 10.0 SP1 and prior releases incorrectly allowed logical

channel 0 to be placed in any physical channel for the PCIe Gen1 1 interface with the

hard IP block. For correct operation with the hard IP block, logical channel 0 must be

placed in physical channel 0.

This issue is fixed in the Quartus II software version 10.1. If you have already

designed or fabricated your boards using the incorrect mapping, file a service request

using mysupport for assistance to remedy this issue.

PLL Cascading for Transceiver Applications is not Supported

Using the clock output of another PLL to drive the PLL input of a transceiver is not

allowed. Only the direct

REFCLK

DIFFCLK

pins driving the PLL input of a transceiver

is allowed.

Hence, PLL cascading for transceiver applications is restricted by the Quartus II

software version 10.1 and later. If you use PLL cascading for transceiver applications,

the Quartus II Analysis and Synthesis reports an error during compilation.

Removal of the 500 PPM and 1000 PPM Options for the

Programmable PPM Detector in the ALTGX MegaWizard Plug-In

Manager

The 500 PPM and 1000 PPM options for the Programmable PPM Detector feature

in the ALTGX MegaWizard™ Plug-In Manager, as shown in Figure 1, are no longer

supported in the Quartus II software version 10.0 SP1 and later. These options are

removed because the programmed PPM threshold values exceed the receiver CDR

PPM tolerance between the upstream transmitter reference clock and the local

receiver reference clock.

Table 4. Quartus II Software Planned Support

Quartus II Software Version Software Enforcement Plan

Releases prior to version 11.0 Follow the guidelines documented in this errata sheet as the

Quartus II software does not enforce these guidelines.

Version 11.0 release and later The Quartus II software enforces the guidelines documented in

this errata sheet.

Removal of the 500 PPM and 1000 PPM Options for the Programmable PPM Detector in the ALTGX MegaWizard Plug-In Manager Page 9

Errata Sheet for Cyclone IV DevicesJune 2012 Altera Corporation

Figure 1 shows the Programmable PPM Detector options in ALTGX MegaWizard

Plug-In Manager in the Quartus II software, version 10.0.

Designs compiled with the Quartus II software version 10.0 and earlier may have a

link failure risk when the receiver is operating in a system that has 500 PPM or

1000 PPM differences for the reference clock frequencies between the upstream

transmitter and the local receiver. Using CDR Manual Lock mode does not overcome

the link failure risk.

For a receiver design that has the 500 PPM or 1000 PPM options selected in the

Programmable PPM Detector feature, Altera recommends evaluating the system

operation with different options, ranging between 62.5 PPM and 300 PPM. To

change the Programmable PPM Detector option, regenerate and recompile the

ALTGX MegaWizard Plug-In Manager design file with the supported options.

1If you compiled your designs using a Quartus II software version prior to 10.0 SP1,

and you have selected the 500 PPM or the 1000 PPM option for the Programmable

PPM Detector feature, the Quartus II Analysis and Synthesis error will be reported in

the Quartus II software version 10.0 SP1 and later.

Figure 1. Programmable PPM Detector Options in the ALTGX MegaWizard Plug-In Manager

Page 10 External Memory Specification for DDR2 SDRAM

Errata Sheet for Cyclone IV Devices June 2012 Altera Corporation

External Memory Specification for DDR2 SDRAM

In the Quartus II software version 10.0, the Cyclone IV E I8L speed grade supported

full-rate DDR2 SDRAM with a maximum clock rate of up to 150 MHz on column and

row I/Os. This maximum clock rate is a preliminary specification pending the

finalization of the timing model.

In the Quartus II software version 10.0 SP1 and later, the Cyclone IV E I8L speed

grade full-rate DDR2 SDRAM maximum clock rate specification on column and row

I/Os has been revised due to the finalization of the timing model for the Cyclone IV E

device family. Table 5 lists the current specification.

Designs that already use the affected devices running full-rate DDR2 SDRAM at the

old maximum clock rate and pass timing in the Quartus II software version 10.0 SP1

and later run acceptably at the old frequencies—provided that the board settings

panel in the IP MegaWizard Plug-In Manager is populated accurately and the board

trace models representative of the relevant system are correctly entered in the

Pin Planner.

Document Revision History

Table 6 lists the revision history for this Errata Sheet.

Table 5. Full-Rate DDR2 SDRAM Support for Cyclone IV E Core Voltage 1.0-V Devices

Memory Standard Device Speed Grade

Maximum Clock Rate (MHz)

Column and Row I/O

Single Chip Select

DDR2 SDRAM

Cyclone IV E

Core Voltage

1.0 V

I8L 133 (1)

Note to Table 5:

(1) You must use the 267-MHz memory device speed grade to achieve the maximum clock rate.

Table 6. Document Revision History (Part 1 of 2)

Date Version Changes

June 2012 2.3 Added the “PLL phasedone Signal Stuck at Low” section.

February 2012 2.2 Updated the “Remote System Upgrade” section and Table 1.

February 2012 2.1 Updated Table 1.

March 2011 2.0

Added the following sections:

■“Human Body Model Electrostatic Discharge”

■“DisplayPort Receiver Specification”

■“Asynchronous Spread Spectrum Clock Modulation Tracking”

■“SATA CDR PPM Tolerance”

■“Remote System Upgrade”

Removed the old “Human Body Model Electrostatic Discharge” section.

Document Revision History Page 11

Errata Sheet for Cyclone IV DevicesJune 2012 Altera Corporation

November 2010 1.1

Added the following sections:

■“Cyclone IV GX Pin Connection Guidelines Update for Transceiver Applications

that Run at ³ 2.97 Gbps Data Rate”

■“Quartus II Mapping Issue with PCIe ×1 Interface Using the Hard IP Block”

■“PLL Cascading for Transceiver Applications is not Supported”

■“Removal of ±500 PPM and ±1000 PPM Options for Programmable PPM

Detector in ALTGX MegaWizard Plug-In Manager”

■“External Memory Specification for DDR2 SDRAM”

April 2010 1.0 Initial release.

Table 6. Document Revision History (Part 2 of 2)

Date Version Changes

Page 12 Document Revision History

Errata Sheet for Cyclone IV Devices June 2012 Altera Corporation