Date: 08/04/2012
QuadTAP/CFM, a four-channel JTAG hardware platform for Teradyne ICTs
Corelis, Inc. has made available the QuadTAP/CFM, a four-channel JTAG hardware platform that seamlessly integrates advanced boundary-scan test capabilities into Teradyne in-circuit testers. The QuadTAP/CFM is designed specifically for use with Teradyne TestStation and GR228x series testers. The QuadTAP/CFM provides Teradyne users the benefits of:
1. Advanced JTAG control using vacant slots on a Teradyne Custom Function Board (CFB)
2. Configuration versatility-allowing up to two Test Access Ports (TAPs) with a single CFM slot or up to four TAPs using expander modules.
3. Independently adjustable TAP interface voltages from 1.25V to 3.3V
4. High-speed 100 MHz test clock rate for boundary-scan test support
5. Compatibility with advanced IEEE-1149.6 AC-coupled digital networks
6. In-system programming of Flash and CPLD devices including direct SPI and I2C support
The QuadTAP/CFM is a single slot Custom Functional Module (CFM) form factor board that installs directly into one of four slots on a Teradyne Custom Function Board (CFB). Integration is simple and transparent; once installed in the system, up to eight signals of the QuadTAP/CFM JTAG, GPIO, I²C, and SPI are available to test fixtures and the tester backplane. Additional signals are made available using the included Expander modules which install into additional CFB slots. Integrated SPI and I²C programming features make the QuadTAP/CFM an ideal and universal solution for boundary-scan, JTAG embedded test, and in-system programming applications.
"The QuadTAP/CFM offers a completely seamless and versatile hardware solution to meet multi-TAP JTAG testing requirements on existing Teradyne equipment," says Ryan Jones, Senior Technical Marketing Engineer at Corelis. "Its flexible configuration is designed to handle a wide variety of JTAG signal layouts. Combining the QuadTAP/CFM with Corelis ScanExpress software provides the most complete JTAG test solution in the industry."