How do I get the SDRAM Auto-refresh Duty Cycle value? Auto refresh Duty Cycle = SDRAM Refresh Time / (SDRAM Row Num core clock period time) For example, If IMS16X core clock speed 50MHz (20ns), and if SDRAM refresh time is 32ms and SDRAM Row number is 2048 then Auto-refresh Duty cycle = 32 10 / (2048 20 10 ) = 781.9 Are the startup code for IMS16B and IMS16C the same? Not same. Chip supplier supports each startup code How can I make clock i want through PLL? Basically if the crystal of 3.6864MHz is... How can Zudra(for IMS16C)'s rom image for evaluation board be configured to make UART 0 run in 115200bps There's assembly code like below in setup.asm of zudra for dos...   Internal Sysnc. RAM memory usage of IMS16C-Tornado In IMS16C's memory map, internal Synchronous RAM...                                       ⓒ2002 Copyright Infinior Microsystems.™ All Rights Reserved.