| Alert Number | EA-P-98-03-V |
| Title | MICROCIRCUIT, MEMORY, FIELD PROGRAMMABLE GATE ARRAY |
| Alert Date | 98/SEP/08 |
| Alert Code | P |
| CAGE Display | 0J4Z0 |
| FSC Display | 5962 |
Applicable Part Numbers:
DESC_5962-90965 5962F9096505QTC RH1020-CQ84V
THE RH1020 DEVICE HAS FOUR PINS LISTED BELOW THAT OPERATE AS DUAL FUNCTION PINS. THESE PINS ARE USED FOR DIAGNOSTIC PROBE AND DEVICE PROGRAMMING FUNCTIONS, AND ALSO FUNCTION AS USER I/OS. WHEN THE MODE PIN IS HIGH, THESE SPECIAL FUNCTIONS ARE ACTIVE. WHEN THE MODE PIN IS LOW, THESE PINS FUNCTION AS I/OS.
PIN NO. PIN NAME
FUNCTION (MODE=1)
FUNCTION (MODE=0)
61 SDI (SERIAL DATA INPUT) DIAGNOSTIC PROBE AND
PROGRAMMING I/O
62 DCLK (DIAGNOSTIC CLOCK) DIAGNOSTIC PROBE AND
PROGRAMMING I/O
63 PRA (PROBE A)
USER DIAGNOSTIC PROBE
OUTPUT PIN I/O
64 PRB (PROBE B)
USER DIAGNOSTIC PROBE
OUTPUT PIN I/O
RECENTLY AN ACTEL CUSTOMER HAS DISCOVERED A CASE WHERE PINS 61 (SDI) AND 62(DCLK) DO NOT
OPERATE PROPERLY WHEN THE SECURITY FUSE IS PROGRAMMED. ACTEL HAS PERFORMED A PRELIMINARY
INVESTIGATION AND HAS DETERMINED THAT THE PROBLEM EXISTS AND THAT ANOMALOUS OPERATION
OCCURS IN SOME OF THE DEVICES TESTED. WE HAVE ALSO VERIFIED THAT THESE PINS DO OPERATE
PROPERLY AS INPUTS, AND THAT PINS 63 (PRA)AND 64 (PRB) OPERATE PROPERLY AS EITHER INPUTS
OR OUTPUTS.
NOTE: THERE IS NO PROBLEM WITH SDI AND DCLK IF THEY ARE CONFIGURED AS INPUTS.
1. TITLE: MICROCIRCUIT, MEMORY, DIGITAL, CMOS, FIELD PROGRAMABLE GATE ARRAY,
2000 GATES, MONOLITHIC SILICON
2. DOCUMENT NUMBER: EA-P-98-03
3. DATE: 1998 SEPTEMBER 8
4. MANUFACTURER AND ADDRESS:
ACTEL CORPORATION
955 EAST ARQUES AVENUE
SUNNYVALE, CA 94086-4533
5. MANUFACTURER PART: RH1020-CQ84V
6. NATIONAL STOCK NUMBER (NSN): NA
7. SPECIFICATION NUMBER: NA
8. GOVERNMENT PART NUMBER: 5962F9096505QTC
9. DRAWING NUMBER: 5962-90965
10. BASE PART: 5962-90965
11. MANUFACTURER'S POINT OF CONTACT: JAMES LIM
12. CAGE: 0J4Z0
13. TYPE DESIGNATOR: NA
14. MFR POC PHONE: (408) 522-4334
15. LOT DATE CODE START: ALL
16. LOT DATE CODE END: ALL
17. CROSS REFERENCE VENDOR: NA
18. CROSS REFERENCE CAGE: NA
19. CROSS REFERENCE PART: NA
20. E-MAIL ADDRESS: james.lim@actel.com
21. FACSIMILE NUMBER: (408) 522-4499
22. PROBLEM DESCRIPTION/DISCUSSION/EFFECT:
THE RH1020 DEVICE HAS FOUR PINS LISTED BELOW THAT OPERATE AS DUAL FUNCTION PINS. THESE PINS ARE USED FOR DIAGNOSTIC PROBE AND DEVICE PROGRAMMING FUNCTIONS, AND ALSO FUNCTION AS USER I/OS. WHEN THE MODE PIN IS HIGH, THESE SPECIAL FUNCTIONS ARE ACTIVE. WHEN THE MODE PIN IS LOW, THESE PINS FUNCTION AS I/OS.
RECENTLY AN ACTEL CUSTOMER HAS DISCOVERED A CASE WHERE PINS 61 (SDI) AND 62 (DCLK) DO NOT OPERATE PROPERLY WHEN THE SECURITY FUSE IS PROGRAMMED. ACTEL HAS PERFORMED A PRELIMINARY INVESTIGATION AND HAS DETERMINED THAT THE PROBLEM EXISTS AND THAT ANOMALOUS OPERATION OCCURS IN SOME OF THE DEVICES TESTED. WE HAVE ALSO VERIFIED THAT THESE PINS DO OPERATE PROPERLY AS INPUTS, AND THAT PINS 63 (PRA) AND 64 (PRB) OPERATE PROPERLY AS EITHER INPUTS OR OUTPUTS.NOTE: THERE IS NO PROBLEM WITH SDI AND DCLK IF THEY ARE CONFIGURED AS INPUTS.
PIN NO. PIN NAME FUNCTION (MODE=1) FUNCTION (MODE=0) 61 SDI (SERIAL DATA INPUT) DIAGNOSTIC PROBE AND PROGRAMMING I/O 62 DCLK (DIAGNOSTIC CLOCK) DIAGNOSTIC PROBE AND PROGRAMMING I/O 63 PRA (PROBE A) USER DIAGNOSTIC PROBE OUTPUT PIN I/O 64 PRB (PROBE B) USER DIAGNOSTIC PROBE OUTPUT PIN I/O
23. ACTION TAKEN-PLANNED:
ACTEL IS CURRENTLY REDESIGNING THE RH1020 TO ENSURE PROPER OPERATION OF THE SDI AND DCLK PINS. THIS DESIGN CHANGE WILL BE IMPLEMENTED AS SOON AS POSSIBLE AND CUSTOMERS WILL BE NOTIFIED AT A LATER DATE OF THE APPLICABLE DATE CODES ONCE THE REDESIGN IS IN EFFECT. ALL DEDICATED I/O PINS FUNCTION NORMALLY AND CAN BE USED AS INPUTS, OUTPUTS, TRI-STATE OR BI-DIRECTIONAL BUFFERS. SCENARIO 1: DESIGN HAS 65 I/OS OR LESS SOLUTION: AVOID THE USE OF ALL FOUR SPECIAL PINS 61-64 (SDI,DCLK,PRA AND PRB). METHOD: AFTER SELECTING THE DEVICE SETUP WIZARD, SELECT THE RESERVE PROBE PINS RADIO BUTTON IN THE DEVICE VARIATIONS POPUP. BY SELECTING THIS OPTION, DESIGNER WILL NOT USE ANY OF THE SPECIAL PINS UNLESS YOU HAVE SPECIFIED GREATER THAN 65 I/O PINS. SCENARIO 2: DESIGN HAS 66-69 I/OS SOLUTION: MAKE SURE THAT THE TWO SPECIAL PINS 61 (SDI) AND 62 (DCLK) ARE INPUTS ONLY. METHOD: WITHIN THE PIN EDIT TOOL, PRE-ASSIGN AND FIX I/OS IN THE DESIGN THAT ARE INPUTS ONLY TO PINS 61 (SDI) AND 62 (DCLK). ONCE THIS IS COMPLETE, DESIGNER CAN AUTOMATICALLY ASSIGN THE REST OF THE I/O PINS.
24. DATE MFR NOTIFIED: 1998 AUG 12
25. MANUFACTURER RESPONSE: REPLY ATTACHED
26. ORIGINATOR ADDRESS/POINT OF CONTACT:
DSCC-VQC ATTN: VINH TRAN
POST OFFICE BOX 3990
COLUMBUS, OH, 43216-5000
(614) 692-0606
27. GIDEP REPRESENTATIVE: CARL MUNCY, DSCC
28. SIGNATURE:
29. DATE: 1998 SEPT. 1
Aug 12, 1998
To: Mr. Vinh Tran
Electronics Engineer
VQC Sourcing and Qualification unit
Defense Supply Center Columbus
3990E Broad Street
Columbus, OH 43213
Copies: Actel: James Lan, Mike Sarpa, Patty Lippe
Subject: GIDEP Alert for RH1020-CQ84V (5962F9096505QTC)
Dear Vinh,
We are requesting a GIDEP Alert for the RH1020-CQ84V due to discrepancies with
the SDI and DCLK signal pins. A Customer Product Advisory was issued to our
customers on July 1, 1998. This advisory outlines the problem and the
recommended solutions that our customers should employ.
Please let me know if you need additional information for the alert.
Thanks,
James Lim
QA Manager
Actel Corporation
955 East Arques Avenue
Sunnyvale, CA 94086-4533
Email: james.lim@actel.com
alert_nbr part_nbr fsc_nbr cage_code lot_date_code alert_parts_tds ------------ --------------- ------- --------- ------------- -------------------- EA-P-98-03-V DESC_5962-90965 5962 0J4Z0 ALL 12-Oct-1998 16:44:30 EA-P-98-03-V 5962F9096505QTC 5962 0J4Z0 ALL 12-Oct-1998 16:44:30 EA-P-98-03-V RH1020-CQ84V 5962 0J4Z0 ALL 12-Oct-1998 16:44:30
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