View mx29f1610-app datasheet:

APPLICATION NOTE MX29F1610 16Mb FLASH MEMORY Since the erase/program time for flash memory are depended on the operation temperature, number of cycle, Vcc, and other factors. This application note is trying to optimize the erase/program performance by using the polling technology to check the status register in flash. In addition to the polling, a time out timer is recommended in order to prevent the dead lock in software. Two examples of software routines are written in “C” in order to demonstrate erase and program the MX29F1610 16Mb flash memory. Please also refer to the Macronix’s MX29F1610 1998 March data sheets for the flow charts, timing diagrams, erase/programming performance table and completed command sets. 1 REV 1.0, 98/08/03  APPLICATION NOTE 2 REV 1.0, 98/08/03