ATF1532AE ATMEL Corporation, ATF1532AE Datasheet - Page 10

• Manufacturer Part Number: ATF1532AE
• Description: (ATF15xxAE) 2nd Generation EE Complex Programmable Logic Devices
• Manufacturer: ATMEL Corporation

Design
Software
Programming
ISP
Programming
Protection
Security Fuse
Usage
10
ATF15xxAE Family
Atmel ATF15xx Family fitters allow logic synthesis using a variety of high-level description lan-
guages and formats. ATF15xx Family designs are supported by Atmel specific design tools as
well as by several third-party tools. Free conversion software is also offered for industry stan-
dard devices. Check the Atmel web site or contact your authorized Atmel sales representative
for up-to-date design software information.
ATF15xx Family devices can be programmed using standard third-party programmers. With
third-party programmers, the JTAG ISP port can be disabled thereby allowing four additional
I/O pins to be used for logic. Check the Atmel web site, contact your authorized Atmel sales
representative or Atmel PLD Applications for details of third-party programmers.
ATF15xx Family devices are in-system programmable (ISP) devices utilizing the 4-pin JTAG
protocol. This capability eliminates package handling normally required for programming and
facilitates rapid design iterations and field changes. Atmel provides ISP hardware and soft-
ware to allow programming of the ATF15xx Family via the PC. ISP is performed by using
either a download cable, a compatible board tester or a simple microprocessor interface.
It is most common to devote the JTAG pins to ISP, but it is possible to use ISP to program the
part through the JTAG pins, and set these four pins I/O pins. However, this will effectively dis-
able further ISP and the device will need to be erased on a programmer to re-enable ISP.
Contact Atmel PLD Applications by e-mail at [e-mail] or call our Hotline at (408) 436-
4333 for details.
To allow ISP programming support by the Automated Test Equipment (ATE) vendors, Serial
Vector Format (SVF) files can be created by the Atmel ISP software. Conversion to other ATE
tester formats is also possible. Check the Atmel web site for up-to-date programming and soft-
ware support information.
The ATF15xx Family also incorporates a protection feature that locks the device and prevents
the inputs and I/O from driving if the programming process is interrupted for any reason. The
inputs and I/O default to high-Z state during such a condition. In addition the pin-keeper option
preserves the former state during device programming.
All ATF15xx Family devices are initially shipped in the erased state thereby making them
ready to use for ISP.
For more information refer to the “Designing for In-System Programmability with Atmel
CPLDs” application note.
A single fuse is provided to prevent unauthorized copying of the ATF15xx Family fuse pat-
terns. Once programmed, fuse verify is inhibited. However, the User Signature and device ID
remain accessible.
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