Masato Inagi Yasuhiro Takashima Yuichi Nakamura Atsushi Takahashi ILP-based optimization of time-multiplexed I/O assignment for multi-FPGA systems. 1800-1803 2008 ISCAS http://dx.doi.org/10.1109/ISCAS.2008.4541789 conf/iscas/2008 db/conf/iscas/iscas2008.html#InagiTNT08