On Wed, Jul 8, 2009 at 00:17, William "Chops" Westfield wrote: > modifying a single bit in byte-wide register without the > programmer having to explicitly read the byte, modify the desired bit, > and write the byte back. Isn't that (reading a whole byte) exactly what a PIC does? If not, what about the heavily documented bug/issue/flaw/feature regarding read-modify-write-operations? -- - Rikard. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist