Alliance's AS91L1002 JTAG Test Controller provides a solution to perform stand-alone IEEE1149.1 JTAG tests on a PCB without any third party test hardware or a microprocessor. Once enabled, the AS91L1002 executes 1149.1 JTAG tests stored in a Flash memory.
The results of the tests are compared with the expected results also stored in Flash memory.
Upon completion of the tests, a PASS/FAIL result is presented. Testing using the AS91L1002 can be enabled using one of two different sources: a power-on reset circuit, or a front panel switch. Anyone of these can cause the AS91L1002 to execute tests that have been loaded into the Flash memory.
When the tests have completed, the status of the execution is presented off chip through a status line to indicate the PASS/FAIL condition. The test results can also be written back into the Flash to enable the diagnosis of failures when a PCB is returned to the factory for debug.
Features:
- Performs IEEE1149.1 JTAG and boundary scan tests in standalone mode without any 3 rd party test hardware
- Eliminates the need for firmware development, thereby speeding up time to market
- Performs self tests in parallel on multiple PCBs in a system
- Stores tests results back into Flash memory
- Pinout and feature set compatible (complete second source) with the Firecron JTS02 device
- Available in a 100-pin LQFP lead-free package or a 100-pin FPBGA green package
- 3.3V Core and IO
- 5V Tolerant IOs
Applications:
- Enterprise LAN switches
- Storage systems and switches (SAN, NAS, RAID, FC)
- Firewalls, VPN and security gateways
- High-end computing systems
- Servers and server clusters
- Printing, graphics, and imaging Systems
- Edge and access routers
- Wireless gateways, Voice & multimedia access gateways
- Multi-service access concentrators
- Test equipment with network probes.
Device Block Diagram:
System Block Diagram:
Products:
AS91L1002S-10L100-C |
- 100-Pin LQFP Package
- Commercial Temperature: 0 to 70 degrees C.
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| AS91L1002S-10L100-I
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- 100-Pin LQFP Package
- Industrial Temperature: -40 to 85 degrees C.
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