Is a software driver developed for the Mini-ACE™ compatible with the Enhanced Mini-ACE™?
A. The Enhanced Mini-ACE™ is software backfit compatible with the Mini-ACE™, with the following two exceptions: (1) In the BU-61588, bit 8 of the RT BIT Word Register (and in the BIT word transmitted to the BC) is CHANNEL B/A*. With the BU-61865, bit 8 is BIT TEST FAIL. It will set to a value of logic “1” if there is a failure of the Enhanced Mini-ACE™’s built-in protocol self-test. (2) With the Mini-ACE™, to run the protocol self-test, it is necessary for the host processor to write and read/verify the test vectors. With the BU-61865 Enhanced Mini-ACE™, all the host processor needs to do is to write a register bit; the self-test vectors are then run autonomously by the BU-61865 Enhanced Mini-ACE™. When the self-test is complete, an interrupt request will be issued to the host (if enabled), and the results of the self-test will be available in registers to be read. In addition, the Enhanced Mini-ACE™ provides a separate additional autonomous self-test for the 4K or 64K internal RAM. Al
