| | 0.6MAX. |
| 2H | | j | |
| 1 | | +I Ln | N o J | |
| * | I | L^ | ={ |
| oO6±0.155 l | 3 f1 0.6MAX |
| cHL _:rl. 3. Al | \IODE \THODE EAT SINK) VODE |
| JEDEC |
| JEITA SC-64 |
| TOSHIBA 12-782A |
| | | | | | |
One or more in-system programmable PROMs can be daisy chained together and programmed in-system via the standard 4-pin JTAG protocol as shown in . In-sys- tem programming offers quick and efficient design itera- tions and eliminates unnecessary package handling or socketing of devices. The Xilinx development system pro- vides the programming data sequence using Xilinx JTAG Programmer software and a download cable, a third-party JTAG development system, a JTAG-compatible board tester, or a simple microprocessor interface that emulates the JTAG instruction sequence.
